Which followers did you put into the pre-ban magazines? Which followers did those pre-ban magazines originally have?
.40 standard capacity magazines which originally came with followers 1028(#1) through #5 should only use one of those followers. Magazines that originally came with followers #6 through #8 should use one of those followers.
Seeing as they're pre-ban magazines, I'm pretty sure the latest follower they can use is the #5 follower. Keep the Wolff springs, and either put the original followers back in or buy some #5 followers for them.
#5 followers:
http://glockparts.com/Detail.aspx?PROD=7204&CAT=711
Another source for #5 followers:
http://www.lonewolfdist.com/Detail.a...OD=376&CAT=192
#9 followers are supposed to work in magazines that originally came with followers #6 through #8, but the part of the #9 follower which engages the slide stop is slightly wider and may not rise fully in the magazine, usually causing failure of the slide to lock back. If this is the case, you can look at that part of the #9 follower and see a rub mark developing, you can shave that rub mark down until the follower rises fully in the magazine.
