Third gen 40 caliber Glock, full size. I have 9 magazines that fit this pistol. During a range session I had jams on the last round with the mag I took to the range. When I got home I got opujt all the mags I have a tried them all with the last round jamming on 4 out of the nine. The last round drives straight forward into the feed ramp and sticks there. I figure I have a follower problem. Are the followers different from one generation to another? Anyone else have this problem?