Well, I'm curious about this myself, as I have a fair amount of black i-beam trussing, and while I am happy about it, it barely fits in my truck in a 15-foot span and taking a 5-foot section off or putting it on is just flat out difficult task.
So, I downloaded the manual for the DuraTruss, and if it's accurate, then a 1.5" clamp, such as the o-clamps, would work just fine. Of course, the C-clamps and S-clamps and other clamps should work just fine
Because my trusses are either painted or powder coated black(ADJ, want to comment?), I find myself marking up the truss using things like the C-clamps and other metal clamps that "screw" down onto the truss metal. I moved to the o-clamps because they are non-marking. But, they are black and that can contrast with the chrome DuraTruss, if that's an issue to you.
My big question is "how wide can I go?" with Duratruss, but I also think I need something more heavy duty than my Crank-2 stands. 20-feet is my new magic number! I doubt it will see 300 pounds fully loaded even over 20 feet, I just need the width for the stages I do since I mainly handle bands and live performers.