Why not use unsupported rails?

[Swarfing]

Jonathan i make no accusations, i just responded to your weak bold statement that lacked accountability of all facts. It was you that made the statement that unsupported rails are weak not me. I just pointed out some of the missing facts? If you could show how strong supported rails are attached to 40 x 40 profile like a lot of machines are you will see just how weak they are in comparison to your model?

PS I'm a performance engineer by trade and do a lot of modeling. i would get shot down in flames if i presented statements like that without all the facts.