Quoted from n0s4atu:

I guess it depends on which Premium you have. I have the pinballcards.com ones for my Roadcase and they look great. I know they've got a couple sets, but I don't know if there's a dedicated Monsters Set.

Quoted from Mando:

There is a thread somewhere around here that shows the difference, ill have to look. But I will tell you this if you are on the latest code you will get a lot of phantom hammer strikes if you have the old board and very few if any with the new board. When was yours made? if it was in 2014 I think you have the new one.

Quoted from Purpledrilmonkey:

Yes. Often triggered by the Sparky flasher once lock is lit if I recall correctly. It's a bit different on everyones machine.

Quoted from jathomp22:

It was a Stern Service Bulletin. Just check your serial number. I had a premium and it had the newer board.
Date: 8/30/2013
Subject: Metallica L/E and Premium machines. New firmware for the magnet processor board along with software version V1.22 or higher optimizes the hammer/magnet feature.
Symptoms: False hammer strikes. Or the magnet will grab and hold the ball for a brief moment and release it without the hammer and disappearing ball mechanism activating.
Solution: Contact your distributor for a replacement magnet processor board # 520-6801-00. Please note. Games manufactured with serial number # 242584 or higher will have the new magnet processor board.

Quoted from Purpledrilmonkey:

The other problem was the opposite symptom, the magnet would grab the ball, then release it without doing the lock sequence.
If your game is playable and exhibits no weird lock sequences on the latest code, it's unlikely you need anything. I would still double check but when the code came for this new board, the game was almost unplayable due to phantom hammering.

Quoted from Prof_Pinball:

The Professor Pinball Team is proud to announce code for Pinduino interactive LED lights for Metallica!
We really like how this setup came out (and Metallica is such a rocking pin!):
» YouTube video
There is a strip of addressable LEDs across the top of the backpanel of the playfield and a strip in the ball trough under the apron. No LEDs strips are visible. Let us know your thoughts (or download the code and customize it.)
Code is open-source and available for download: https://github.com/elyons/professor_pinball_pinduino_sketches/tree/master/Metallica-Apron-Back
PM us if you are interested in the Pinduino. We have DIY kits available and can make preassembled, plug and play kits. Game list is available: https://docs.google.com/spreadsheets/d/11VoKNLjT155F_1Cb9qFR242T72BXVptGnAP17ZsIu4Q

Quoted from Hougie:

I need to paint Sparky more often. I won't top this for a while, lol..
IMG_20150326_144640356.jpg (Click image to enlarge)

Quoted from Hougie:

I never answered your question before.
-Number one - nudging is your friend, embrace it. It will keep the ball out of the outlanes. Use dead bounces as much as possible. Flailing is the enemy!
-Master the fuel lane and mystery scoop shoots. Tons of potential points rely on you being able to hit those two shots!
So here is a typical "good" scoring game for me
-I shoot for lighting the inserts toward CIU on the ramps and loops right away. Complete those and lock them in. You will get to CIU way faster. ie. The big points.
-I go for the coffin locks first. I often accidentally hit sparky enough to start his multiball first. During this multiball I usually get the extra ball lit from coffin bashing.
-At this point I'm usually ready for a CIU. I go for FTB or FWTBT first.
-During CIU try to hit sparky, snake, cross and coffin to light the mystery scoop. Hit several shots and then go for the fuel lane. This gives you 2x scoring. Hit the scoop. Collect the cash out option on the CIU and you get double points. It's not uncommon to get over 100mil from cashing out on the CIU 2x jackpot.
-At this point I'm usually close to coffin and I try to stack immediately with sparky or cross when I start coffin multiball.
-Then you are usually close to another CIU, Seek and Destroy, Blackened, etc.
-On a really good game I will at least reach the above goals.
This game is so much more than bash sparky/ rinse/ repeat. Truly one of the greatest games IMO.
Hope this helps and gives some goals to aim for. I am absolutely positive that you can find other/better strategies but this is just my fair to middling strategy.

Quoted from Aurich:

The blue arrow indicates which shot you have selected, so if the left rap is blue, and you hit the electric chair, it will light the chair insert on that shot.

Quoted from Hougie:

I never answered your question before.
-Number one - nudging is your friend, embrace it. It will keep the ball out of the outlanes. Use dead bounces as much as possible. Flailing is the enemy!
-Master the fuel lane and mystery scoop shoots. Tons of potential points rely on you being able to hit those two shots!
So here is a typical "good" scoring game for me
-I shoot for lighting the inserts toward CIU on the ramps and loops right away. Complete those and lock them in. You will get to CIU way faster. ie. The big points.
-I go for the coffin locks first. I often accidentally hit sparky enough to start his multiball first. During this multiball I usually get the extra ball lit from coffin bashing.
-At this point I'm usually ready for a CIU. I go for FTB or FWTBT first.
-During CIU try to hit sparky, snake, cross and coffin to light the mystery scoop. Hit several shots and then go for the fuel lane. This gives you 2x scoring. Hit the scoop. Collect the cash out option on the CIU and you get double points. It's not uncommon to get over 100mil from cashing out on the CIU 2x jackpot.
-At this point I'm usually close to coffin and I try to stack immediately with sparky or cross when I start coffin multiball.
-Then you are usually close to another CIU, Seek and Destroy, Blackened, etc.
-On a really good game I will at least reach the above goals.
This game is so much more than bash sparky/ rinse/ repeat. Truly one of the greatest games IMO.
Hope this helps and gives some goals to aim for. I am absolutely positive that you can find other/better strategies but this is just my fair to middling strategy.

Quoted from Sparky:

When a row is all lit and blinking, you hit the captive ball/Hammer, which should also be glowing. I don't know how much time they give you, but it's kind of a hurry up. When you hit the captive ball/Hammer, the blinking lane/ramp will go solid, and it's one step out of five toward S & D. It's better not to start S & D before CIU because all the inserts you have lit count toward CIU. Once you start S & D, all those lit inserts disappear. When you finish your first CIU, you can continue to shoot for lanes/ramps toward your next CIU, instead of the more dangerous/unpredictable toys.

Quoted from Ballsofsteel:

he noticed his new KISS is super light