I'm working on a DE Monday Night Football. This is the first time I've played one and the flippers are just crazy powerful; lots of airballs, shots flying off the ramps, etc. I was sure that when I checked the flipper coils I'd find the wrong ones but nope, they are correct. Also checked to see if the transformer was set for low line voltage. It wasn't. So is this normal, and if not is there something else I should be looking at? Thanks!