Stopped by a gunshop yesterday, and the owner was telling me about a solvent called Gunzilla. Says it's a protectant, solvent, lubricant, everything. Claimed he has it on every gun in the shop. He told me it would clean ANYTHING better than any other solvent on the market. The stuff is expensive. Is it actually that good, or was he just REALLY trying to make the sale. I go in there once in awhile, and he's never been too pushy when it comes to selling. Anybody?