I am pretty successful until now with manual trading. However, I did not use MT4(just my broker's platform), so I cannot share my history here. I am at about 12 times the initial deposit.
But, I got tired of keeping eyes on the monitor and felt I was losing many opportunities, so I made up my mind to switch to automatic trading.
I devised a few algorithms, and I am writing a scalping EA... about TP/SL 3~6 pips.
So, my EA is very sensitive on the broker's condition(I changed my broker).
And, the spread thing I asked initially is very important to me.
I didn't really care about spreads cuz I used a broker that had a fixed spread.
So... here is my brief introduction.......