Hardly an expert, but I'll share my experience. My car is a heavy street car, and I've found that it 60's better leaving more up on the converter. 9-1/2" converter, flashes to around 4500, I've been setting the 2-step at 3000, where its nearly a half a tenth quicker than just down at 2500. I also typically don't floor it when its on the 2-step. I get just past the 2-step RPM and hold it there to leave myself some pump shot. Stomp it and let go of the brake at the same time; 2 step is just wired into the brake light circuit.

Common bracket classes up here are sportsman (footbrake, no electronics,, no 2 steps 12.00 floor), Pro (Trans-brakes & 2-steps are ok, floor is 8.00) & Super Pro (add delay boxes & electronic devices).

2-step is not considered "electronics".