Our ET procedures are generally designed so that you can accelerate at acceleration altitude. However if turn radius is of importance you are normally limited to take off configuration for the first turn. The procedure reads like "maintain V2 and TKOF flaps until established on..." in that case. That is the big exception though, only 2 or 3 procedures that i know of have that, most notable is NCE where it is really important. Unfortunately some procedures were designed rather stupid from our performance supplier, for example in STR they expected us to turn at 1500' AGL and then hold at he Outer Marker of the approach runway putting us right in the way of possible go arounds, only after heavy pilot complaints it got changed.