I'm just comparing my 1min cash chart with chartmans and have seen a major difference( I've checked with other sources and CM's is correct, mine is wrong)
The early high(at 2.35) of 9650 is not on my chart, infact the corresponding high on mine is 9635, and gives a double top with the high at 2.52. Strangely enough, the bar patterns are almost identical on both charts, it's just that mine never got above 9635.
I'm using sierra/IB, and realise that slight discrepancies do occur from one data source to another, but this is more than slight. Did any other IB users note the same