I'm curious as the owner of 3 T-8's and a T-2 why water isn't used with the T2 wheels? I thought the purpose of water cooling on the T-8's was to keep the knife edge cool at the point of contact. Am I wrong here? Although the T2 rotates at a much slower speed there seems there would be sufficient heat buildup at the edge to affect the properties of the knife. Am I wrong?