Well, it won't get pulled if your finger stays on the other trigger, that's for sure. It's subconcious, but it does require some brain activity to move the finger from one trigger to the other. If I were swapping around from gun to gun, between double and single triggers, I know that at some point I would try to pull the front or back trigger twice.

There was a prominent British SC instructor I was reading several years ago who stated that double triggers will cost you 1-2 targets in competition. How he arrived at that is anyone's guess, but I think there is something to it.
JR

Be strong, be of good courage.
God bless America, long live the Republic.