Jacky :
Well now, you've got the whole "off season" to practice & experiment !
What seems ideal for one, may not work as well for you. By all means, find out how far out you actually break your targets ... and pattern/choke accordingly. For the guy who breaks his targets fairly quickly, say at 32-34 yards ... Full may be more of a Handicap. If he's "righ-on" his came - inkballs, but if off just a little, those "X's" can turn to "O's" in a hurry! In every case, 100 well-broken targets beats 99 that are "smoked" ... the margin of error can be surprisingly small.
For me, Light Modified ( about .015" - .017" choke) and Improved Modified
( about .028 - .032" choke) work pretty well on doubles with 1 oz of 8's for the first, 1-1/8 oz 7-1/2's for the second. I load the 1 oz to about 1250 fps data and the 1-1/8 oz to 1200 fps data ( currently using Promo and Claybuster) Improved Mod also works well for me for singles and Handicap distances back to 23. Save the tight chokes for the back fence with 7-1/2's.
But do pattern and don't accept what the choke has marked on it ... I've seen many that say they're one thing and pattern completely differently.