first of all VSA can never be applied in the forex market because you never know the size of the contract itself per tick and broker's data is different(retail), only higher tier transaction data can be used, so the basic data information is already flawed
even so as i said again, it cannot tell you roughly it can go how much further.
if you wanna use VSA, better bribe someone working in the big banks' trading room to feed you info   sure win if you know what they gonna do next 
let me put it like this, IMHO,

this market is super manipulative due to the nature of the players which are big banks. These big banks have got so much money they can move the market whichever direction that they want, i've back tested the fakey(whether you call it as pullback/retest, or banks getting better price ?) for intraday is about 30 to 50pips range (4H will be about 80pips), so this amount will be the amount of SL you have to put, without a good R & R, no system can win because your odds wouldnt be by ur side.
let me rephrase this, indicators can give you a good entry, but without a good strategy, you cannot win.

have you noticed that everytime you make the trade, the move goes opposite you ? this is because of the knowledge that we know kills us.  We wanted more and more confirmation, lets say engulfing candle before entry, once we go in, the price pullback.
I personally believe that trendline and SR is the most reliable tools you can use

stochastic for a trending condition will always go at the extreme, lets say LONG, it will remain at the Overbought level....
what the book said ? the book ask you to short because it is at OB level

i'm talking about reliability of indicator + a good strategy

---

Added on January 4, 2011, 8:43 am

you see how simple it is, no more confusion, just wait, kasi dia pecah