I sold a tank to a guy last week that had one medium sized dent in it. He took it to his local "body shop" and they put the air to it. The dent did not come out, but the two sculpted knee areas did, ruining the tank. Needless to say, the body shop guy called me two days later and I have now doubled my money off the one sale. Not so bad for ugly common Japanese tanks, but I hate to see something really nice end up wrecked. Let us learn from your mistake.