My BF pin holes were out of alignment as well. I also had trouble getting the 510 to thread onto some of my mods, it didn't want to thread all the way down on my devices that use FatDaddy 510's...so I gave it more oomph than I normally would (think PlumeVeil), and now it threads just fine. I'll try it on my Hana and Shotgun mod later and report back.
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Sent from my iPad using Tapatalk HD