GROVER wrote:

I have a Ripstrate, a safety device which is mounted to the table saw
fence. It has a pair of spring loaded rubber rollers which pushes the
stock against the fence and a pawl which prevents kickback. Its
essentially a pantagraph mechanism. My fence is the
"Unifence" (3-1/2" high). At that height the rollers do not extend
down to the table.
snip

1) Have you tried using the low profile side of the Unifence extrusion?

2) You can always make a wooden spacer fence that accepts the
Ripstrake mounting and then bolts to the Unifence from some plywood.

Lew