Only problem with that, Vet, is that (as a diabetic) my podiatrist tells me I should never walk around barefoot, even in my own home. And twist drills in the rug seems a fine reason to comply!

Fortunately, I don't have to worry about those little tiny drills -- never bought one. I made a pair of pinholes the other day that differed by about .0003" (that's three tenths of a thousandth) as measured on my scanner at 2400 ppi, both perfectly round, using a sewing needle in a pin vise and a razor sharpening stone with a couple drops of 3-in-1 oil. Took about fifteen minutes each, including cleaning off the oil to scan for size a couple times along the way. It's NICE not to have to compensate exposure between two identical cams -- and now I can think about stereo images, too...