Stop Placement

I trade a breakout system on a 15 minute chart... Generally speaking I trade 2 lots at anyone time.

I take profit on the first once I have 20 pips profit then I trail my stop.

My question is from your experience how many points behind is it best to trail a stop...

I used to trail it 30 points behind but in the recent weeks because of the low volatility I have been trailing it 15 points behind. So my question is what is an effective distance to maximise profits trailing a stop.

I trade Cable intraday off of a 15 min chart....

I have always been a fan of ATR based trailing stops - multiplying the ATR by 2 or 3.

I believe ATR stops are the best way to place your stops. I always have ATR showing on my screen with 1, 14 and 100 period. The 100 period I use for an overall average and the 1 and 14 to show present volatility. As an indicator I use Price Channels for stops or you could use ChandelierStops for an indicator. I find the PriceChannels indicator great for stops.