I had read that new P-Series pistols cannot use the older magazines but generally the older pistols can use everything. I scored a couple of P95 magazines the other day but noticed that the slide locks back on the last round. This is just messing around with snap caps. Upon closer inspection the slide stop is higher than the magazines that came with the gun. I think it is an easy fix but now I'm worried that maybe these magazines might have some other problems. Any experience?