Depending on your aircraft-type and SOP, the usual
practise is to hold the speed you've got up to a max of
about V2+15. A very small increase in overall gradient is
achieved at V2+10.
What the "esteemers" are gettin at is the predictions of
the pre-calculated 2nd segment net TO flight path, esp if a
curved TO is necesary during it. The curved splay though
takes into account any V2+ speed. Certainley Id come
back to V2 to reduce the turn radius if a wackin great hill
was looming in the winscreen.
I think John Tulla would be the expert here.