The extra buttons on Munsters are WAY too close for this purpose. I would be hitting it all the time by mistake and wasting my magnasaves.

Steve would say that you need to play better.

Someone needs to design a wireless stick on button for no drilling solution.

I've gotten pretty good using the button where it is. I saved two balls on my second game. No way am I drilling my LE. I will install wireless if possible, but beyond that I will do the Steve Ritchie method.

Stern used two buttons on the Munsters Premium and LE. Problem is the position of the second button sucks and a lot of people (like me) hit the second button by mistake a lot. No big deal on the Munsters, but it would waste a valuable Magna Save on BKSOR. To mount the button forward of the flipper button ala BK2000 is not possible with the standard Stern buttons because the playfield is in the way! Anyway, a microswitch style button can easily be added either external as I did or by drilling a hole if you so desire. Lets let this thread die on the vine. See my post and pictures here:
https://pinside.com/pinball/forum/topic/black-knight-swords-of-rage-club-honourable-knights-only/page/55#post-5768400

Wrong! Those of us who have installed buttons are probably a better source for this answer. You are partially right though because of the speed of this game most of the balls hit the outline before you have a chance. But there are plenty that can still be saved with a quick twitch to the nearby button instead of the lock bar

I have done it and so have others. Read post 216 just above...

Drilling the cabinet would have added five minutes to the install and saved me having to design and 3D print the button holder. If I didn't have and LE, I would have certainly drilled first. The key is to use microswitch buttons rather than the push button with a switch stack inside the cabinet. As mention before, the playfield is in the way on the Sterns where that was not a problem on the old Williams games.

I made one for another pinsider recently with an LE. He said he had two saves in his first game after never saving a single ball on all of his previous games since he purchased NIB.

It is a low power switch. Basically that is what I did was put a low profile button that has a microswitch into the housing that I printed. I could have just as easily drilled a 30mm hole in the cabinet and installed the switch. This is not rocket science. It is the easiest mod in the world. You just have to chose whether you want to drill or leave it external. The wiring just routes in under the side rail and is soldered to the terminals on the lock bar switch. Both switches will work in game play since they are both wired in parallel.

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It is a big improvement in speed. You can get to the button instantly. As mentioned above the speed of this game compared to the older games makes a lot of balls not savable with my reaction times, but slower moving balls and ball bouncing around in that area are much easier to save now. I make one or two saves in the course of a decent game now. Before I made one or two saves in a decent week.

Edit:

These were the best buttons that I found. They have the switch built in and with the tabs folded over they are low enough profile that they could fit in a 30mm hole in the cabinet in the same location as BK2000 without interfering with raising and lowering the playfield. So just choose the location, drill the hole, solder the wires on both ends, route wires carefully and snap the switch in. These buttons are also low enough to make my external fix not too big.

https://focusattack.com/seimitsu-ps-15-low-profile-pushbutton-black/

Too bad the Munsters armor was drilled like that with the second button below instead of putting the button forward of the other one like on the Williams BK games. I don't use my fingertips to hit the flippers, so I constantly hit the lower button by mistake on The Munsters. On BK I would be wasting the Magna Save long before I needed it...

Yeah I rigged up the button on my LE externally because I didn't want to cut a hole or change rails, so I put it in the forward position. It worked great, but the funny part was that I had become used to the crossbar and the first couple of saves I made I forgot it was there and saved the ball with the crossbar!

To me the magnasave on this game will never be the same as the original game where the ball moved so painfully slow. BKSOR is so effin fast it is near impossible to save the ball even with the button correctly located. If I was redesigning the game, I would put the magnet all the way down in the outlane. Once the ball was caught, the software could use the magnet to throw the ball upward and back into play a la The Shadow.