one question to Whroeder and gumrai

 
is an easy question,it is possible???to make money
with scalping if we pay de spread(we cannot place limit order inside the bid ask spread) without martingale???
many years of trading behind me and i dont think is 
possible!
thanks

 
by scalping i mean only few pip <5  takeprofit,
and with tight stoploss.
 

I can only offer my opinion, which is not necessarily fact.

I believe that the best than you can hope for in trading is a relatively small edge. With small TP and tight stops, it is extremely unlikely that the edge will be enough to compensate for spread/commission.

Martingale can give consistant small profits, but those small profits are always wiped out (and more) by a large loss.

 
Automated scalping is a dream, without market making software/knowledge.
                             
thank gumrai
all opinion are welcome