Got my order from Vapor-Room this morning. First off, I ordered the Red G2, and not the Red/Silver G2, so I got the SE and not the LE version. My Bad !! I checked the Firmware version and it was 2.4.4, so I updated that straight away to 2.5.7. Everything seems good to go except that the o-ring around the 510 pin was half out of the 510 and wouldn't let the 510 on my Siren make contact. I futzed around with it for a while and couldn't get it to stay down around the 510 pin of the G2, so I just took it out, now the G2 makes contact with my Siren. The o-ring of this SE is clear, and the o-ring of my Blue G2 is black. I'll work on that later I guess.