The assembly instruction do specify that you have to re tighten the cable IF you move your high backs..it's just mechanics...Never had an issue with my CTXs. A narrow profile boot helps too. I still find puling one single lever faster than adjusting two straps.
2014/15 -3- Kirkwood days
Arbor A-Frame 158 2009-10
Jeremy Jones Hovercraft 156, 2011/12
Subaru WRX 06