I agree. Beside problem with scalping is your SL. We all know that in scalping we put 15 pips more or less in our TP. but how about SL? if we put 10 pips SL we end up getting hit early. If we put longer than that we end up losing more than what we earn.
That's why its important that you must know when to put SL in scalping. Because in scalping its all about timing. Trading scalping without any sense of timing you will going to end up getting lots of loses.