I think I might have done more damage to my hair with S&Ding just because it's seriously impossible for me to cut the hair at the exact perfect angle. My hair is wavy, so it always wants to curl away from me. Plus I can't seem to separate the damaged strand from the rest of the hair that I'm holding without dropping it in the process. So I just try to cut it as carefully as I can while I'm holding it with the rest of my hair and I always end up with a weirdly angled cut and that (I think) will lead to another split. But at the same time, if I see a split I can't help but not cut it!