Keith
??? 1. I made the washers similar to the Losmandy? washers so that the screw would sit in the recess and? the ??? spring would be stable sitting over the small lip. Also Losmandy probably designed them this way for a ??? ??? ??? reason.
??? 2. My son was in LA a couple of years ago, so I got him to purchase some small spares including the springs for the saddle plate. These are probably the springs that Losmandy use for the SLW.
??? 3.They are tightened barely snug, I also smeared a small amount of Superlube under the worm blocks and used some purple 222 Loctite on? the screws to stop them working loose but still allow adjustment.
I hope this answers your questions, if you have any more dont hesitate to ask.
Clear skies
Tom