My dreads are 3 months old now, and starting to mature from the bottom up. A few are mature all the way to the root. I like the look of maintained dreads, and that's what I am hoping to go for. Most of the loops have been sucking themselves back in, but there are a few that are getting stuck as the dread matures. And some dreads are zig-zagging up into lumps. My dreads are pretty skinny and I used the twist and rip method, so I am a little worried using a crochet hook while they are this young, but I will if it will help. Any advice is appreciated!