Jim,
NOW you tell me! I had my ship quit when I turned inverted on the wingover at the nats this year! Landed in the grass - over the hill, and all was well. I had flown three flights the night before and all was fine, but the clunk was - you guessed it - in the front of the tank!
Thanks much for the tip, it's just in time to incorporate it during my winterizing PM work.
Blessings,
Will