In 13 years of owning Banshees I've never burned a motor down. I've never blown one up. Even when my crank broke in half it didn't tear anything up.
Obviously they've had great initial setup but I just don't see the need. Kind of like plug chops. Never have, never will.
Other than Cam setting them up, I put together all my own motors and countless others in the area. Guess I'm either good or lucky.