Bendy pieces could even be kinks in your hair. Some wavies have kinky strands. I know I have some. I also have some really coarse kinky strands that totally do not match the rest of my texture. You'll know if you have a protein overload - hair will feel like straw, really rough and dry, won't curl as much as usual. Dryness can also come from buildup. Do you low poo or clarify ever? Are you sure you're not using any 'cones? If cone buildup is the case it could be blocking out any moisture you're trying to feed it.
fine, thin, normal/(low?) porosity. Mod-CG. Usually I can't co-wash more than 1x a week, & sometimes I have to use T-Gel in rotation due to scalp issues.

Co-wash: VO5 Volumizing
Poo: Giovanni 50:50
RO:TN, Nexxus Youth Renewal, Alba Coconut
PT: gelatin PT, ION EC
Stylers: Giovanni mousse, TIGI Curls Rock amplifier (a-cone), Curls Rock Strong Hold Mousse
Gels: SCC spray gel