using the "current spread" (which is 1.8 or 1.9) of the optimizer, instead of spread 2, changes the results of my EA completely. why?

 
spearpoint: changes the results of my EA completely. why?
You are losing less on the spread. If that is a major change it means your strategy is marginal, or you need to use larger timeframe with larger profit targets (reducing the broker's percentage.)
 
WHRoeder:
spearpoint: changes the results of my EA completely. why?
You are losing less on the spread. If that is a major change it means your strategy is marginal, or you need to use larger timeframe with larger profit targets (reducing the broker's percentage.)

Thank you, but when I use spread 2 I get much better results than when I use "current". The log says that the cureent is 18, which is 1.8 pips, and 2 means 2 pips , I think, not .2 pips. Please help.

 
spearpoint: e cureent is 18, which is 1.8 pips, and 2 means 2 pips , I think, not .2 pips. 
If you think 18 is 1.8 pips, then 10 must be 1.0 pips. Why wouldn't 9 be 0.9 pips and 2 be 0.2 pips? Spread is listed in points. on  5 digit broker a point is 1/10 pip.