Two gadgets that help when ripping:1) ripstrate: A roller device that
sits on the rip fence. It holds the wood down and the angle of the
wheels drives the wood "into" the fence. Wheels only turn i one
direction to prevent launches. A heavy duty and well made device. 2) At
the opposit eend of the spectrum is a simple plastic tab, that mounts
inline with the saw blade in a zero clearance insert. It works like a
splitter, but the plastic springyness keeps the woo pushed up against
the fence.

Mitch