My wonderful wife bought me a Leigh D4R and the VRS support for Christmas. I spent the better part of today giving it a trial run as I have a project that calls for a couple of drawers. After numerous attempts (read 5 or 6) I continue to get a good joint except for one point. Although the joint's fit is snug, I get a 1/32" gap between the depth of the tail socket (on the pin board) and the tail itself. No gaps anywhere else. After I put calipers to it, it is evident that I am routing 1/32" deeper in the pin board than I am the tail board - this, in spite of assuring that the fingers are making good contact with both boards. No changes to the router depth itself were made, and the error is uniform. For kicks, I placed a 1/32" shim between the pin board and the fingers (thus decreasing the depth of cut) and repeated the steps yet again. Perfect fit with no gaps.
I'm stumped. Is this a technique error? Anyone ever experience this?