I have a DP/Time that I love. Pistols likes to stand in the center of groups, and Time really supports this with Time's Juncture and Farsight. You definitely need to be a very proactive player with /Time, but it is remarkably powerful and gives you a ton of utility.
/Kin is also a great choice and fully supports standing the center of big groups. The ride to 32-38 is a lot bumpier, the end end result is awesome. Hail of Bullets with full stacks of Kinetic Transfer is one of the most enjoyable things in the whole game.
The plus to either set is everyone loves having you in a team. With /Time or /Kin, no one even cares what your primary set is.
Second, it seems like Distortion Field and Time's Juncture are applying -recharge bonuses.