Your current pics look 3A to me, but your pre-flat-ironing pics look 3B. Quite a few people report having problems returning to their former curl pattern after heat damage. Also, some people get looser curls as they get older (while for others it's the opposite). When you say (below the last pics) that you BC'ed, do you mean that you BC'ed all of the parts you had previously flat-ironed? Or did you chop a relaxer?

If you want to get back to your 3B pattern, you are on the right track going CG! What products are you using, besides Kinky-Curly?