I tried mounting the headset in the bucket with wires, which was terrible having the bucket tethered to me. Tried having the headset on and putting the bucket on after which gave me the same issue - the mic would move or come off completely. I got a new headset that holds tighter so you can put the bucket on without it moving. The issue now is there is more feedback than ever. I have the amp on the strap, hanging from my neck as low as it will go.
I may try the wireless headset, this is getting frustrating! lol