I have had an FT hana modz DNA20 for the last week. Other than the regular issue with reading ohms, I have been very pleased with it. Today, the fire button came loose. When I looked at it, it was held in place by a dollop of hot glue on one side. No way am I going to send it back as it would take another month and all they would do is hot glue it again. The glue is still pretty soft so I plan to strip it off and re-attach it. I need to know what type of epoxy or glue is best to do this so it will not come off again?