Quoted from brad808:
You do not want the "upgraded" coils. They are too powerful and then eventually fade down to the standard level after a long time of running.
The problem with LOTR has always been heat regardless of what coils you use.
Here is how to get the best experience from LOTR flippers.
1) Rebuild the flippers using all stock parts
2) Zip tie some 12v 120mm silent computer fans onto the coil brackets to keep the stock coils cool for extended play.
3) Plug the fans into the aux 12v plug on the inside right of the coin door.
What this does is give you the correct strength of flipper that never heats up and therefore never fades. Not one that starts normal then gets weak and not one that starts off way too powerful then gets to normal level. Just nice proper strength all the time.
Happy flipping .
Exactly, I also use the Computer Fans to keep the temperature constant. However, I would take the APB Enterprises coils, which arme a bin more powerful, but not over-powered.