Thanks guys.
The biggest tips are :
Start with the firmest leather you can find, from the same hyde. I've never used pre-cut washers, they leave little option for shaping unless you like the broomstick look. No matter what the knife, I cut rectangles 1-1/2" high and 1-3/8" wide. Individually fit them to the tang, keep in mind they'll easily compress at least a half inch. I glom the whole knife together with epoxy and shape it as one piece after cutting out the general shape on the band saw. In 30+ years, the best belt for this has been a Trzac A-65 belt, I do 80% of the handle with it. At any point in shaping, don't be afraid to dunk the handle in a can of polyurethane for a few minutes, let dry and resume the process. This really helps eliminate the fuzzies. After a couple, you'll get your own ideas. Go to my pics and you'll see the looks different leathers gives.
Rudy