[amibroker] A question regarding ApplyStop in NBars

[jacklweinberg]

Question:
Whay are the results of the following two code segments so very 
different?
Code A:
Sell=False; 
Buy= ExRem(Buy, Sell); 
Sell= ExRem(Sell, Buy);
ApplyStop(stopTypeNBar, stopModeBars, LExitDays, True, False );  

Code B:
Sell=Ref(Buy, -LExitDays) ;
Buy= ExRem(Buy, Sell); 
Sell= ExRem(Sell, Buy);
ApplyStop(stopTypeNBar, stopModeBars, LExitDays, True, False );  

In the results, Code A shows some trades as "Long(n-bar)", and Code B 
shows those same trades as just "Long". That I understand.
However, Code A generates 151 trades while Code B generates 628 
trades.
All other parts of the trading system are the same!