Different Daily data

["Shraga(Feivi-Philip)" <shraga@xxxxxxxxxxxx>]

I've noticed that depending on what datafeed you use or what chart website 
you look at, the S&P futures daily bars will have different data. It 
depends on whether they include Globex or not, I assume. Now, as far as 
technical trading is concerned, which should I use? Which is actually a 
better representative of the market?

Philip