And the twin-hilt fighting style is essentially mastering the single-techniques and then going beyond that. True that you lose the ability to grasp one weapon with two hands, I find escrimas much more fascinating to watch a master use than a staff.
Although some could really do wonders with a katanna, it's the complexity of moves that you have to master for two-weapon fighting that I find most impressive. I didn't select the Tonfa-grip guard sabers because the loss in wrist flexibility doesn't quite compensate for the perpendicular grip you have.
A standard staff would be much more realistic than a saberstaff because you can't get the leverage that's supposed to come with a broader grip. Ray Parks had to modify his fighting style in order to work with the double-bladed lightsaber, but that style wasn't as effective as the one he would use with a standard staff.