My scissor steps are not parallel when extended. If I extend them so the middle step is level, the upper slants down away from the camper while the lower one slants back the other way. I always though...
We recently changed to the Torklift Glowsteps with the 8"x20"treads. My opinion is they are pretty awesome, compared to our old 6"x18" scissor steps there just isn't. Much easier to climb and descend.
I hadn't even got installed and I started comparing the difference. Shown is the Torklift 6"x20 tread from the basement step we also installed.
Ours are 4step. The 8" treads are simply nice. Less feeling like climbing a ladder. Were pretty happy with ours.