Hi Gents,
Regarding flap settings on the bus, our co policy is now to use 1+F (Unless stated otherwise under certain conditions written in our SOPs). I find that at relatively high weights on long runways with high Flex temps we get a long t/o roll... VR usually around high 150s. A/C tends to twitch quite a bit at that speed on the ground.
Best option i found to use Conf 2 with packs off t/o. gives lower V speeds, plus generally same flex as 1+F. In the event of an RTO, I feel the a/c would be easier to handle at slightly lower speeds, albeit 10-15 knots lower!
Just my 2 cents.
Lamboo1