I trim more than I shoe but I'll jump in. The rolled toed will quicken break over slightly - that is why you'll often see rolled or "rockered" toes on horses with ringbone etc. You end up with a slightly different arc of travel of the foot - a touch higher and sharper, not going to make a daisy cutter into a hackney though. The full rim is good for traction it will pack with dirt and dirt on dirt gives good grip without hard grab. I do not know the purpose of the little divots on the outside edge. Aluminum is softer as well as lighter so the shoe will spread under the horses weight slightly, if the horse has iffy feet this can eventually lead to cracking around the nails - as they shift slightly with the shoe they pull outwards on the hoof wall. Probably not an issue with a horse with normal feet but can be a problem if used longterm on poor feet. They will likely only last one cycle if you do any roadwork, two if you are a ring only girl. Light weight may give a slight edge in highly competitve hunters or in fatigue levels for racing, I doubt it would make a difference in eventing.