Agree with AEROE
6 O’clock hold on your front post works for most shooters. The small variation on that hold depends on your eyesight and preference.
Some folks are pumpkin on a post, and some folks are flat tire.
Pumpkin on post is tangent to the 6 O’Clock.
Flat tire is an attempt to bring the two corners of your front post to the radius of the aiming black.
There are folks who use Navy Hold at the very center. The tendecy is for shooters with blurry vision at distance who say that just getting their post into the black while focus is on their front post blade will help with their hold. There are even folks who shoot slow fire at 6 O’clock and rapids at center.
For air pistol, you must decide if you are practicing for bullseye or combat. Most folks will use a precision air pistol for bullseye, but there are some who are speed and combat oriented. Just depends on your goal.
Chewing up your 10 ring is a good problem to have.
YMMV