BTW an important thing for shimano 4700 10s and 11s road users thinking of using DT levers; the cable pulls required are slightly longer than for earlier shimano road systems.
For example 11s is nominally 10 x 2.7 = 27mm total cable pull, call it 28mm to allow for the longer pulls at the ends of the shift pattern.
10s (4700) shifting is 9 x 2.8mm = 25.2mm call it 26mm to allow for the ends of the pattern.
This amount of cable pull is about the most that some DT levers (i,e, those with small take-up drums) will manage, so best to check this carefully.
cheers