You can't feel the tool hit the grooves as you slide across it?
I had a "self group buy"...I bought a large group of tools for myself! I am so excited, and cannot wait for their arrival. Trying to TBC with the "small" factory rest is next to impossible.
Ok I give up, I still dont see the benefit of the grooves. I am sure there is a reason but my brain is just not locking in on it.