I've used both the gripshift (which I started with) and I'm now using triggers. I think the gripshift shifts faster and more accurately. The only reason I changed was that I wanted to run thinner grips. Durability not so good for me. My 42T lasted only 1000km, so now I'm limited to a 10-36 at the back. The 42 slips with the new chain that I put on at 1000km. I also changed chainrings at 1000km. The reason for the poor durability at the back is that the 42 is aluminium whereas the rest of the cassette is steel. So if your riding involves lots of climbing (as mine does) then carefully consider if XX1 is right for you, or else run a smaller chainring at the front than you might have, to minimise the time spent in the 42. My complaints to SRAM/Cape Cycles about this were fobbed off. Next time I will buy Shimano (hopefully they have a better engineered 1x11 alternative by then).
