510 E2 Cartomizers, LOVE EM, had a tough time with THREADING

[THE]

It took alot of elbow grease to get the E2 510 far enough into my Hello battery ... The other 510 stuff I have like atomizers and adapters always fits effortlessly ..... are the E2 cartomizers just threaded a bit differently, or what?

I LOVE the E2 so far !!