well
The Attack system, I have used the "triggers" Attack from Sram with my XT system and it worked pretty good.
My local lbs hated them "cause they are not compatible" he had missed that the gear hanger was a tad of its course... which I suspected and after a quick fix of that they worked really well. But the triggers suck, they are not comfortable and I don't like that u can't get them align perfect with Avid brake levers. I like the look u get with Gripshift, clean...