EngelMacher

I have a G35 that is converted to 9mm with a KKM .40 to 9mm barrel. The gun seems to function fine in the short time I've tested it, but I've noticed that the slide will not fully seat forward if I hold the gun vertically muzzle up. Obviously the weight of the slide + gravity is a factor here, but is this a safety concern I should be worried about? The gun sits out of battery about 1/8" and only occurs if I gently ride the slide vertically. It seats itself into battery if I rotate the gun, slowly, into a horizontal position. If it is an issue, should I swap in a heavier recoil spring, or file my barrel hood?

Finally decided to make an account here after many of my Google searches directed me to this forum anyways. I've been shooting competitions for a few months then took off about 6 months and now I'm getting back into the swing of things. I mainly shot IDPA with my Sig P226 but now I have a G35 and I'm hoping to compete more in USPSA Limited.