Could have been me. I guess it all depends on what you think a commercial should be like. ;) Yes we are a sponsor. Yes we sell radiators but I am very conscious of my participation. If I think we have a good solution, I'll usually PM. If I think I can add something to the knowledge base, I participate. I think this topic is a good example. There's nothing we can help the topic starter with. He made a very high quality choice but he still had questions revolving around his combination.