This seems as good a thread as any for this question / poll. What mix do most prefer for a pony bottle? That is assuming that the user is Nitrox certified. Since the pony is typically a "bail Out" bottle to be used in an emergency situation, do you want a 32 or 36 mix to lessen the nitrogen? Or, since it is just for a few breaths to get to the surface, do you just go with good ol compressed air?