mustafagander
I think that’s probably the best answer. You’ll be climbing at not far off the same rate but reducing the distance = time = fuel for the entire flight.
Running the numbers at 220kts and 160kts with 25deg AoB, by the end of the turn you have saved ~4miles, which I would suspect far outweighs any extra drag from takeoff flap while you are in the turn. It’s what I normally do when, say, taking off south to go north or something like that. Also, as the actual rate of turn is ~40% quicker at the slower speed, you spend less time with the increased wing loading and drag from that. If you hold takeoff config as opposed to going to 250kts, it’s about 7nm saved.