@Silver the 510 pin comes in 2 parts, screw both out first. If you are having a tough time after that, use a pair of long nose pliers, insert into wicking holes for leverage and unscrew the build deck from the glass. Hope this is clear enough...
Thanks @Atsbitscrisp
I only unscrewed the bottom pin. Maybe I had a daft moment. Didn't know there was another part to unscrew. Will look again tmrw. Thanks.