Are you only getting the hot button when using the Hybrid adapter?
I recently got a hot button on my original MCR 101, and I found out that it was due to the pin in the hybrid adapter not making good contact. Once I snugged up the connection between battery and atty (by way of the pin), then the hot button went away....
I would definitely email Liam and let him know. He will likely do whatever it takes to rectify the situation..... I also had my original 101 autofire on me, and I emailed Liam and he sent me out a new Delrin Insulator which resolved the issue.
is the derlin insulater white?