If you go to D. Ross's incredible site, The Light Farm, you'll find several methods of dry plate prep that go from simple to very thorough. I'm sure that in combination with her method of edge prep, you'll get impeccable results with wet plate. The old guys really had this down, you almost never see frilling,etc on stuff from the 1800's. Maybe someone has the answer they had.... Reminds me of the old buddist recommendation: "Do not follow in the footsteps of the men of old. Seek what they sought."