previous days or right before market open, say 9AM NY time..pivots, support, resistance numbers..??...for futures trading...say YM and 10 year note...better to use the end of yesterdays prices to calculate pivots, support, resistance etc. or use the prices calculated right before RTH open on the US markets...this one (right before open calculation) factors in the overnight ranges...for some reason I think using the previous days numbers (and not calculating before open) is better for seeing the price picture...do you agree or what are your thoughts?...thanks in advance...