That is good and how it should be. You should not be able to trap on most games when a ball rolls down the inlane. On some you can do a rollover pass, which is when you hold the flipper up and the ball ramps to the other flipper.

I would guess the main problem is the weak flippers. This is because on TAF, the center ramp is key and a weak shot that doesn't clear the ramp will go flying back toward the center. Also, a weak upper right flipper shot to the jackpot ramp will leave the ball out of control and that's a potential drain situation as well.

With good flippers and the game angled right you should be able to hit the center ramp consistently with either flipper from a trap/cradle.

Oh, and regarding the electric chair, it's designed to be a drain monster. The safest way to shoot it is a backhand from a trap on the left flipper. Shooting it on the fly or from the right flipper is dangerous.