You would then get one wrong bar in any of your time frames. Price history stores M1 ticks by their close time, not their start time. If you still want to offset bars for some reason, use the TickFix variable.
This is interesting to me because the Ally broker API gives me the start time of the period, and I just used that for the field in my plugin, which now appears to be incorrect. So I should add BarPeriod/1440.0 to the DATE value, correct?
Expect an update from me soon.
