I think in general we might find that our tightest/shrinkiest pattern is more difficult than the rest. I had similar issues with my tightest pattern too, the hair there was broken, it was visibly my rough patch. You just have to learn to pay it more attention. I now always separate this section and baby it more than the rest, I cut the perm off of it (I'm transitioning) so that it won't deal with 2 textures. Just cater to it and be extra patient with hair that is more high maintenance than the rest.