I've never used the Dr.s acclaimed formula because I started using Gashell pruning compound before I'd heard of it and because I'm grafting on trees already in the ground, usually spread out, and sometimes from a ladder on ancient apples. Gashell is like kid's clay, just moist enough without being sticky and can be kept in any plastic bag in your pocket to pull off a litte every time you graft. No muss no fuss.