i was on 3fvape and seen these adapters. They have either 12.5mm or 12.8mm O.D. for the 810 side of things. Does anyone know about these and which one fits better for most tanks? I got the 12.8 figuring that I can remove some stock but can’t add so the bigger one makes sense. Just wondering if people have tried these and what generally fits better since they’re coming from China and I’ll have an eternity to drive myself nuts wondering if I made the right choice. Also wondering if the 510 is also bigger then too. Cause I don’t want that.