In reply to MG:
> 450m/hr at that altitude is very optimistic...
Maybe but I'm just going by my timings. The point I used the timings to make is still just as relevant if you compare the Altitude rather than timings which are obviously subjective to the speed of the party.
gain from TR hut to summit = ~1640m
gain from VH to Summit = ~450m
To rephrase my initial point. I would not recommend staying at the Vallot hut as it is ~75% of the Vertical ascent in terms of height gain from the Tete Rousse hut. If you can carry overnight gear up to the Vallot hut you've likely expended the energy and used the extra time that would have brought you up the final leg to the summit anyway.
This seems obvious but when I was at the Vallot it was crammed full with people overnighting there with sleeping bags and cooking equipment. It's also very high so unless you are very well acclimatized you are subjecting yourself to a longer exposure at altitude increasing the potential to feel shitty.
Post edited at 13:27