A friend gave me a Mystik scraper, nothing special, i wasn't impressed. As former tool snob I once thought I had to have all the most expensive tools for bow making. I have them all, bowyers edge, mystick scraper, sandivic cabinet scrapers and a bunch of other stuff as well. Nothing scrapes as well or sharpens as easily(accusharp scissors sharpener) as my half pair of Fiskars scissors.
The same friend who gave me the mystik scraper gave me the scissors and said" try these out, they will surprise you". They certainly did!
The only other high dollar tool I have found to be worth every penny is a Nicholson #49 pattern makers rasp. I smile ever time I use mine because it works so well. I have the #50 as well but the #49 is all you need.