I just converted a triple to 1x11 with a 34T chainring and 11-40 on the rear for commuting and trail riding on my Troll. Really don't ever need to pedal faster than 24 mph, because above that, I'm coasting. The simplicity of shifting only the rear is great. Takes all the planning out of shifting without having to worry about the front. And the XT RD can go up 4 cogs per shift, so shifting to an easier gear is quick. Still, I don't have any issues with a compact double on the front, especially when combined with an 11-40 on the rear.