I have and love a Springfield 1911 WWII 45 acp. I wound up with 10 - 7 round clips out of the 10 , 1 does not hold the slide back on the last fired shot or by just pulling the slide back. I was told to adjust the lower foot on the clip, but it doesnt seem to help at all. My primary dealer just tossed me another one and said sorry about that and lkife goes on. Can you adjust the clip ?