My old S/C case had Helicoiled TB stud threads. Two of them stripped out the second time I removed the TB (the studs pulled right out with no torque, on a cold motor at that). I Helicoiled all three of them, replaced the studs and never had a problem. Although if my current S/C case every strips i'll probably tap it for a different thread/stud.
My HVTB STG2 which I bought used years ago had a stripped hole for the throttle cable bracket. I helicoiled the bad one, its worked fine and that bolt has been removed several times with no issues.
