I purchased a Glock 34 and had the slide milled to lighten it up then bought a ported barrel. I can't get it to cycle. It stovepipes. I ordered a spring kit with 15, 13 and 11lb springs but none of them will allow it to cycle. The lightest spring I can find is 10 lbs. The gun will cycle with the 11lb spring and factory barrel but not the ported barrel. I'm shooting reloads that cycle fine in several other guns. Should I order the 10 lb spring?