re: How to align roller stands?

I have used about every kind of stand used in home, or industrial woodworking shops over the years, and my #1 choice is the Ridgid portable, flip top work support. No matter the machine, or the situation I have never had mine fall over, either under, or because of the load. I have had one of those as pictured above flip, fall on it's side a number of times, and with several situations, and the cheaper classic single roller stands fall more than they stay up. Some kinda smart engineer came up with that swivel top deal, anyhow it's my favorite, for anything moving across it, just standing support, or take off of some pretty heavy items. Just throwing it out there. Looks like some places either can't get one, or they are selling out so fast inventory on hand may be an issue though.