What slippage and commission settings do you use in NT to get somewhat realistic backtest results?
In my mind there are 3 components that eat into your profit each trade:
a) Bid / Ask spread (at MBT for AUD/USD that's e.g. ~2.5pips or 25 ticks with my settings in NT at 1/10th pip)
b) Commission (set via commissions tab in the options as designed.)
c) Actual slippage (assume 1 tick?)
The killer on a 5m chart is the spread, but how do I simulate that - set the slippage setting to 25+1 ticks?