Leslie C: I think you have to do what is right for YOUR hair. I know from bitter experience that my 4b hair cannot withstand consistent applications of relaxer from root to tip -- it will not recover no matter what I do. Period. Others with different hair types can do this, but I simply cannot if I wish to have healthy hair. I think a corrective relaxer is a similar thing, reapplying the relaxer over previously relaxed hair, so I'm willing to wait rather than take such an irretievable step that could set me back for years -- IMO, it's just not worth it.
With regard to tangles, I just take my time when I wash my hair -- the different textures are not noticeable when my hair is dry and I don't have tangle problems generally. I NEVER attempt to detangle when my hair is wet because it is the most fragile at this point AND that's when the textures are obvious. I know others detangle with conditioners under the shower, etc. I can NEVER do that, a comb does not come near my hair when it's wet. Period. I massage and comb out my hair BEFORE I shampoo and then I go through the process WITHOUT combing at all, just work shampoo in, rinse, work conditioner in, rinse. Then I towel dry BEFORE I start to comb, and then I am extra special careful, slowing detangle hair from ENDS to ROOTS, never comb from roots to ends - that's how knots from. I towel dry first and then comb out as I do my roller sets. So far, it's working for me and I am comfortable with my regimen. Indeed, folks always saying how nice my hair is and some folks even like to touch in order to look for tracks (I take this as a compliment!)