Which of these two is most efficient:
1) Buying all of my BA tonight at 11:50 PM Server Time, waiting until 6 AM Server Time and then burning it along with tomorrow's BA during EXP time; or
2) Burning today's bought BA like usual and tomorrow's during EXP time, and getting the BA that refreshes at night.
My BA refresh rate is 9/10 minutes right now, so I'd miss 324 refreshable BA tonight by buying today. I can buy a maximum of 648 BA, and I'd have 160 from today, so tomorrow during EXP time I would have 1456 total BA to burn, not counting the BA that refreshes during that time period.
My question is this: Which is more efficient? Buying today's and having tomorrow's seems most efficient, but with the refreshable BA that I'm missing, I'm not sure. So I'm asking you: Which?
[Note: If reward calculating master Avoid, who is my HERO until Wednesday as per our agreement would chime in, that would be greatly appreciated.] Thanks in advance!