Thanks everyone.
I know that HK's in general sometimes need a break in with hotter ammo. I had a couple P2000 V2 LEM's that had issues cycling a weaker batch of Gecco I bought a few years ago.
I just thought maybe the P30L model in particular needed something more. Anyway it's good to know that it's nothing that I'm already not familiar with.
Thanks again, I appreciate the quick replies!