On Fri, 19 Nov 2004 18:03:03 -0700, Doug Winterburn
wrote:

I can't understand why TS teeth moving towards the operator are OK, but
RAS teeth are scary?

TS teeth move forwards and down, holding the wood down onto the table.
RAS teeth move forwards and up, lifting the wood off the table. You're
reliant on the additional hold downs, not just a big trustworthy lump
of iron.