winning % with high card Ace

[rafiki]

Can someone give me an idea of what a good winning percentage is in tracker with A high ? Based on a purely +/- stand point I seem to be showing down way more losers. I think I win about 25% of my A high showdowns. Obviously the stat is skewed because I frequently do that early in sessions to create an image. But I'd still like to know what I should be aiming for there.