[Thor]

MecGar are good mags but I do believe they have too weak a spring. I think you are right on about the time to get the round in position. Remember a Luger can do a complete cycle in less than 1/60 of one second and the time for the round to rise and get in position is probably 1/10 of this total time (the breech block has to be complete back before the round can begin its climb into positiion) most feeding jams occur when too weak a mag spring is used. Also, the Luger pistol came with a loading tool. The designers made that tool because they designed a very strong magazine spring. Wolff springs also sells replacement, but I plan to start using GTs springs when I need some more.