I kinda had the same question (on taking clomid/nolva), but I don't think it really makes a difference.....it's all personal preferance, as long as you take it for the day. Since I take my cholesterol meds at night, I'll opt for taking my nolva post cycle in the a.m.
As for the 6-oxo don't really know why it is suggested to take with evening meal....mabe since hormone/growth hormone levels are higher while one sleeps, which is just a guess. I'll let someone with more insight answer that in particular.