I have SUPER fine Scandinavian-type hair (if we're gonna hair type..). Rubber bands have helped me LOADS with locking, by attaching a two strong spots to each other (with a REALLLLLy weak gap in the middle). I put them on a few hours after washing with non res dr. bronner's, slept in them for 2 days and removed them and my hair started locking together. From my (little) experience what makes rubber bands REALLY damaging is when you loop them too many times around your dreads, that's made for some pretty harsh weak spots, NO progress, and it IMPOSSIBLE (nearly) to cut them out (forget unloosing if they're too tight). Yes, they look silly but personally I don't think it's all THAT unnatural (and again not very harmful if using them the right way). My hair has a REALLY hard time locking, so I went out of my way to find light colored bands on amazon in bulk (since NOWHERE has bands for blonde hair). 2-3 days of looking silly really ain't that bad