To be specific it is the Freud Recoverable Bead bit for glass doors.

The problem is I think I am setting it up to cut to deep. When the end of the piece leaves the in feed fence it kicks into the bit so the profile is deeper. I have made a zero clearance fence and it still is doing it. The zero clearance fence goes to the nut on the top of the bit. I have zero clearance fence on both the in feed and out feed side. I am using a six inch ruler to flush the fence to the deepest part of the bit.

I can not leave the pieces longer because the cope cut is done first so the rails have to be the exact correct length to make the cope cut.

Anyone used these bits to make glass doors? Any suggestions of what I can do to eliminate this problem.

Thanks