When the wheel handle is at the top, it is cutting some variable at an even sixteenth. As it rotates down a quarter turn, the thickness of stock changes by 1/64th inch. If I want it to hold perfectly even as set and without having to over-tighten the table locks, an accessory lock of some kind is required. I reached this conclusion by talking to technical support at Grizzly and learning that they could offer no relief for my problem.
What too many these days do not know is how much pleasure one can find in such simple accomplishments. Not only does it work, it's a small thing I invented myself. And while it may be impolite to boast or to gloat about such small things, unless you've done something of the kind you will not know the feelings involved.
Today I am working on preparation for my class on making veneered boxes. It starts on Monday morning.
Make, fix and please create... Teach others to do likewise.