I may be way over-thinking this, but i'm known to do that.
This will be my 3rd or 4th season using the FF2 and i'm still not sure how I prefer to have it set up.
When I shot adjustable sights I set it up so that I aimed at the base of the neck where it turns to feathers and let the shot column envelope the neck and head without passing too much shot over his head. I'll call this a 6 o'clock hold for our purposes here.
Do you set up in a 6 o'clock hold with more shot hitting above your red dot, or do you center the bead in the densest portion of the pattern and aim at the middle of the neck (center hold), or do you use a 12 o'clock hold with your densest portion of the pattern below the dot, hold it on his eyes and pass no shot over his head ? Make sense ??
Geez...it's late and i'm rambling...just anal about throwin' an air ball over one's head one day.......
I guess most guys would say just center the red dot in the center of the pattern, aim at the waddles and let 'er rip....what say ye' ?