I've used Kami for wet-mounting on a flatbed for awhile now. It works pretty well. Recently, however, I tried Prazio's Anti Newton Oil. This is a thicker, slower evaporating alternative to Kami. I find that it helps "glue" down curly film better than Kami, and the slower evaporation makes the process easier. So far, I simply hang the negatives to dry overnight. While I haven't made any optical enlargements from this negatives, to the naked eye they look clean. So if you are wet mounting with a flatbed, I highly recommend that you give the Prazio a try.