very nice can You tell me your first observations of the kbp wrist rest as I have wanted together one. However with tiger and inanis's amazing woodworking skills it would have to be a hell of a deal for me to not buy one of those ...
At first glance, I must say I love the angled side as it gives much better typing experience than a straight wristrest. It also have good construction/cutting and I really like the touch of the walnut
However and from the downside, the wood is not as smooth as I expected (it has little imperfections/porous wood, but maybe that's normal in walnut) although I can't really feel it when I touch, of course. The treatment is also very minimal, so I'm thinking on giving it a coat of bee wax or some other proper wood treatment/finish.
Custom wristrests have the great advantage of the wood block being "cherry-picked", which is very nice! but on the other hand custom ones can be very expensive (please bear in mind that I've paid £22 for the KBP)
hope it helps