Ok, so while I've never used a rack system for snakes in my life, I'm going to be making the switch for the ball pythons that I'm getting.

I'd like to avoid sterilite tubs as if I'm not mistaken they are beveled around the edges at the bottom and have a little dip around the inside of the tub which causes the beveled outside bottom. It's hard to word it, but hopefully I've made myself clear, or I can post pictures. Is this with all sterilite, or just some? I know the vision tubs appeal to me the best but not all rack systems use the vision tubs.

I'm liking the 28/32 qt tubs, but if I got those, does vision sell a direct replacement to where I don't have to make any modifications.

Next question would be about if the tubs come with air holes in them or not. Then what ways do you find are best to put air holes. I've used a drill to put air holes in sterilite tubs when I had hundreds of scorpions, but they would feel kind of sharp. So what do you all use?