Another thing to look at too is the *quality* of the tripod and head. Shooting tiny things, like chocolates and jewels, I found once that the bogen head and aluminum tripod combo I had was actually amplifying slight vibrations in the room. Spent the good part of a week trying to figure out what was going on. AFMA was dead on, live view manual focus showed dead on, mirror locked up, wireless triggering with a PW, and was using the 100L IS - with IS off. Changed to an Arca-Swiss head, carbon Gitzo, then sandbagged the crap out of the tripod, lights, AND the product table. That took care of it.
It was because of the magnification and scale of the items. If the camera was a hair back further, the vibration disappeared, but I needed it to fill the frame because of reproduction size for maximum detail. Any closer to the subject, and the vibration disappeared, but then it was cropped in too far.
The product was lit with 5 strobe heads, large boxes and all. I suspect that if I didn't have the flash sync limitation at 1/250s (i.e., if I would have been using leaf shutters), I could have kicked it up a bit and been ok. It was just enough of a vibration that one could tell looking at the edges of the subject. And, it drove me nuts.