Well, if you don't know what they are - how are we supposed to ??
You say that your skew is just a flat 1" skew, have you put a curve on the sharp bit ?
I found that when I started using the thing it bit back quite a lot, I put a curve on the sharp end
and it is now quite controllable. I think it's one of these tools Les that you just have to stick too and practice.
Good luck , you seem to be getting the hang of it quite well. -- Julian