One pump is a pain in the butt when repairing bladders. Most of our customers just drop their kites into the shop for repair rather than repair themselves. In my opinion, I would prefer multi inflate, but as I start to grow older

, the electric pump and a one pump system are becomming more of a luxury.
As for one pump saving you time, Bull crap, saves you squat really.
(I have always found that a multi inflate kite can be tuned to fly better, as you can put more pressure in the struts).