You can't make up for less than perfect precision shooting by changing to a more open choke. The difference between full and modified is trivial anyway. And by doing so you are doubting your ability and trying to increase the element of luck.
You'd be better served to focus on getting your mental game straight (assuming you're already shooting "A" class or better at Singles. cls
Use the full choke and forget about it. Otherwise you might get beat by some one with a Model 12 (factory full choke), only because he/she doesn't know any better. I remember almost 20 years ago I bought a new S682X Beretta single. It had a factory full choke. I just knew I had to have choke tubes. Sent the gun to Briley. Got it back and had 3 chokes. (Full-Improved Modified-Modified) Placed the Full choke in the barrel and the other 2 chokes went unused. Smart huh?? Chokes don't break birds, if you miss with the full you will miss with the modified... Ed
IMHO you only need the least amount of choke it takes to have the pattern do what you want at a given yardage.You must know , ie , no guessing. Another question would be ,how many top shooters shoot the same tight full in both barrels for doubles ? Jeff
I use EX-ful for practice with 7/8oz loads,usually switch to ful and 1oz or 1-1/8oz loads on programs and usually pick up a bird or two,not that I shoot all that bad anyway,just dont shoot enough.but I still firmly believe when I miss a bird its my fault.If you throw a 5gal bucket of shot out and are off target you will miss.
My dad advised not making any technical changes, like shot size, dram size, a more-open choke or any strategy toward shooting faster. Instead, he advised to simply see what the target was doing before pulling the trigger and make sure you get the right bird bead relationship. He used a full-choke for both 16yrds and handicap. Kim