Milliard makes good points. It makes me smile that proponents of FX talk about the trillions of $ worth of liquidity when most retail traders have access to exactly .....none of it. Anyway I digress (well perhaps I don't) you have to wonder what these bookies show as volume? Is it the volume of there book? Not much informed trading going on there. This is one of the things that put me off looking at FX, though there are a couple of real brokers coming on line it seems.
Anyway seems to me that milliard is not knocking
VSA but saying it is not going to make much sense when there is no volume being reported.
I have a more general concern with no supply/no demand and it is to do with all participants withdrawing (much as Milliard points out) rather than just one side. I suspect that many bars that might be identified as no supply or no demand are actually indeterminate. Even during regular market hours. Maybe thats something to try and articulate in another post.
Anyway I guess Milliard and the rest of the London FX gang will be in the pub by now being as its mid morning on a grey London Friday

Unlikely to get much more sense from them this week hehe.