I'll tell you what I'll do!
If you can prove to me through a youtube video, or some other means that Beman mfx's are tougher than GT Trads, I'll buy you a dozen Beman MFX shafts of your choice, or $100.00.
I shoot GT Trads exclusively; I have stuck them in trees where I had to dig them out with my knife. I have hit rocks so hard that the nock pops out of the end, and the field tip flattened out. I have been shooting one set for over three years, and wore out two sets of fletchings, all with no cracks, or splits.
I have heated the field tips up with a propane torch, to let the inserts get hot enough to turn loose of the insert, done the same with Beman MFX Classics, and they split.
Don't get me wrong, I like beman, but I don't think their tougher.
Bring it on!