just wondering how many guys have problems shooting with glasses I start wearing bi folcals an really struggle holding groups,when I look though the peep im right on the line an have too adjust for every shot.

I don't really need bifocals, but I got a prescription with them once and found they were a PITA to hunt and drive with so I went back to a regular distance vision set. As you say that pesky line is right on the border all of the time and makes you change focus. Anyway, my suggestion is to try using non-bifocals when hunting.