I have the 28qt tubs with dividers from Reptile Basics.
My hatchlings have been in there since last June with no problems as of yet. Is there a major difference in the dividers between C-Serpents and Reptile Basics? I can't imagine there would be (how many ways can you make a divider for a tub).
Or is there a difference in the tubs? I just read "at the front and back of the tub where the bottom dips down" part again. The tubs from Reptile Basics are flat bottomed, so maybe that's why I haven't had any issues?