Mine broke. So much time and effort it's hardly worth it. Maybee wood species makes a difference but I tried to use the 4estTrecker method and I wound up piking the bow. Both sides cracked split and simply broke. I've seen some realy big recurve tip overlays that were glued on . I may try that method next.
My radius was the top of a 5 gal bucket for an 11" section that was pretapered.