I never had any locks on my racks and so far never had any escapee either.
As far as hide I provide one to each snake, some use it some don't, I prefer having one in the enclosure even if not needed than not having one and it being needed.
eeeee i think we have misunderstanding... I was referring to breeding So... I gonna ask different ... Did You ever pair 2 BP in 32qt Tub ??
1.0 Striped African House Snake "Marduk"
0.1 Striped African House Snake Ishtar
1.0 black phase Brown House Snake Seth
0.1 black phase Brown House Snake Nephthys