The Easyboot Grips are for extreme terrain situations, like sloppy mud or ice and would be like having caulks added to steel shoes. Too good of traction for everyday riding and hard on your horses legs.
The Bares get wonderful traction on their own, so I'd suggest them, or even the regular Epics work fine. Have some barrel racers that have competed in them while their horse was transitioning out of metal shoes, and that calls for serious traction! I personally don' t like the Bare's adjustment system, but I do like the tread. The Epics have a better adjustment/fitting system, IMO. You can custom order them or swap out the adjustment system if you go directly to Easycare site.
The Old Macs arent' too popular with any of my clients..bulk and tend to sag after a while was the comlaint.