Walt, when Joe wrote: "I've even lifted one side of a panel that's cutting a bit too shallow", it made me think of a problem I am having right now myself, (covered in another thread). But simply as a note, because my table top is not as flat as it should be, that shows up in some parts of V-carvings where the lines become too thin, because the material surface is not up high enough. By measuring, I found how low one end of the plaque is compared to the end where I zeroed the bit, then I put a shim under the low end. In the area I normally work, I have to put a .030" shim under one end.
I'm not saying that is what Joe has going on, but in my case, resorting to shims has become required to make my V-carvings not loose some of their finer lines. Chuck
Chuck Keysor (circa 1956)
PRT Alpha 60" x 144" (circa 2004)
Columbo 5HP spindle
Aspire 9.0, Rhino 5