My main is a Smuggler, and has a companion (Bowdaar, the Wookie) that is a melee-tank that uses STR as his primary stat. He's pretty much a Jedi Knight, just with no Force powers. It's an easy fix to Qyzen: make his primary stat STR, and then change him so he doesn't actually show armor that's equipped on him. That's how Bowdaar is currently handled, and it works fine. He has a Jedi robe equipped, but you can't see it because his model doesn't actually show it - the options to change his look are just done through the customization vendors. I think this would be a better idea anyway. Instead of just seeing a walking dinosaur with trooper armor, you'll be able to see a Trandoshan with his native garb. It'll look more natural, in my opinion.