Thanks jcl for clarifying that. I do have one question however, if we use the day(), HH() & LL() functions then I remember you saying somewhere you will not be able to preform oversampling on the script due to any strategy that uses certain opening and closing hours of the exchange.

So I guess what Im trying to get at when we use strategies that look at intraday high/lows will this method generally yeild better backtesting results than using the priceHigh() & priceLow() functions and then oversampling the script?