An extra messure of safety for the wooden cribs would be a square plate of 1/8" slightly bigger then each leg of each stand (or all four legs of each stand), this will NOT allow the leg to act like a splitter and open up the top 2x4 or 4x4 of each crib.
4x4 would (or RR ties) would be my choice, if I had to go that route.
Greg
4x4 would (or RR ties) would be my choice, if I had to go that route.
Greg