My hair used to be texlaxed years ago before I even knew what texlaxed was, .... I would leave the relaxer on for 13 min max. At the time I couldn't figure out why I wasn't getting straighter results, so I started leaving the relaxer in for longer periods. I liked the straighter results, but when it was time to relax again, out of habit I relaxed for only 13 min
leaving me with the two textures. I didn't correct it and of course a year or so later there was breakage at the demarcation line. At the time, I wasn't conditioning as much as we do here at lhcf and I wasn't as gentle with my hair either (combing, scarfing, moisturizing, loose buns).
Since you're doing those things you might have better success with a mixture of texlaxed and bone straight hair though.
I still have different textures from rinsing the relaxer out too soon (usually on the sides), but the time difference is usually only between 1-2 min vs the texture when I was texlaxing @13 min and the bone straight texture relaxing @20 min.