I only bought one pack on sale, and the rest of the were maintained by someone with experience. I am just sharing my bad luck, which seems to follow me like the friggin' plague. And the rest of my GP and EP packs are fine and well maintained and have never had a problem. I have just had bad luck with IB's. I am not knocking anyone else's good experiences with them, I am just sharing mine. I, in no way told anyone not to buy them or disputed their racing performance, for I have never got to run one. I am just saying what happened and my bad luck with them. Use what you would like. I don't care. You don't have to read it or respond to it.