I saw that the part above the drawer is smooth. That is good. (Thanks for the detailed photo.)
I would like to know if it is tight enough to keep parts from changing sections, for example when tilting a sysroll, or even laying it down in the back of a truck.
Also, are the bins for the drawers the same height as the sys 1 bins?
I bought one sortainer and never used it because things got stuck whenever I moved it. I had to change to a rack-tainer.