My West System Scarffer showed up on Wednesday, and wow. To put it simply- it's amazing.
The hardest thing about this tool was mounting it onto the skil saw, and even that was pretty straight forward. Once it was in place, serious scarffing started to happen.
My greatest respect goes to those of you who can scarf by hand. But for me, this tool has been a time saver. In less than two minutes I had a perfect 1:8 scarf across a 4' plywood panel.
Worth every penny.