Ive made great progress on my GT2A Skyhawk frame and I am looking at petcocks right now but I cant find what thread the tank is. I asked on another forum and I am hearing different things. One said M10x1.0, another claims 1/8" MIP. I did some reading online saw another claim M10x1.50. So does anyone here know what the thread pitch is on the GT2A Skyhawk frames? I emailed Don earlier tonight but didn't get a reply.