Tick volume on forex is only a measure of the number of price updates of a chart provider's data feed for a particular currency pair.
In the case of multicontributor feeds, the tick volume also increases as more contributors come online (due to timezone differences). In such multicontributor feeds, there are often large price movements during the asian-hours trading data, but the "tick volume" is dwarfed by the volume during the European-US trading data due to the sheer number of contributors.
There is no evidence that it is related to actual trading activity.
What do you consider to be a "real volume chart"? Can you name the market/instrument please?
At certain times it appears to be visually correlated to actual trading
but until someone has done any serious analysis such as granger
causality modelling and identified how they are actually getting any meaningful volume figures for an OTC market, I won't be convinced.
I am not disagreeing with your trading methods though - just your understanding of what tick volume actually represents and what it is correlated to. For your trading method, it may well be quite helpful to know which pairs are being rapidly requoted but don't mistake this for actual volume.
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