When somebody says "somebody needs to prove to me they are worth their money on the ET slip" throws out the Quality factor. If they are only worth 2 tenths more than the Eddy, it doesn't mean it was a waste of performance money, if one considers the Quality. So many threads on this site about poor quality, poor fitting parts. Any part. Yet, when TF puts together a quality head, so many say "before I pay the extra 500 bucks, I want to see a big difference on the ET slip". Complain if they do, Complain if they don't... LOL