hehe. I enjoyed that cat fight very much. It is indeed one washer either side of the plate for each post. So there is only one washer on each post between the plate and the lipstick tailpiece. The washers I used are a fraction over 1mm in thickness. I use 11 - 54 gauge strings on there. The 54 "E" string fits under with just a smidgen more clearance. I think a 56 would probably not fit under there.
I'd take a photo but I don't have a digital on me. I want a digital but I'm saving up for a Twin.