And I must offer my envy as well. I shoot double action with two hands, but don't do nearly as well with one hand.
I have to admit I cheat these days. I shoot the "Centerfire" match with a S&W model 52 anymore. As much as I like revolvers, I don't do well shooting bullseye with them.
Keep working. Looks like you'll get better. (Which is of course the idea for all of us.)