Hi Thomas, I'm beginning to believe there was more to it then we realize... the Interarms,"Made in Holland", mags have a different and considerably weaker spring then the issued Mauser mags... The extreme spring tension in the issue Mauser mags was probably a catch all to overcome function issues that most likely plauged the pistol design through out it's production life... The ' "Made in Holland", mags were probably made to appeal to a less sensitive market , old and new..... It remains unsolved for 100% reliable function... may stay that way... time will tell...Best to all, til...lat'r...GT
BTW, BTW, I need some Mauser para springs!!! Help... Help...Help.. hel...he...h..... ....... ..