"Vic Baron" wrote in
m:

I'd really suspect he tensioning. I've cut curves fine using a
properly tensioned blade with out the thrust bearings. As long as the
blade is sharp, should be no problem. Of course, this is only for
testing.

That was my first thought. But he mentioned turning up the tensioning,
with no effect. He also says he can cut in something soft (cardboard),
but not in wood. So my guess is that his blade has no set, and the
back of the blade is binding against the side of the kerf.

John