I cannot really explain the scalping part - but just now on GU - we had a HL at 67 and then it tried up from there to 72 and now above 67 its scalp buy - but need over 74 and 77 to hold = otherwise if scalping you just take what profit you can get
Now I dont have to worry with 30% free trades - I can either place stops in profit or even at both interim lows and then - what ever happens I have made profit from the 70% stake part - ( 2 lots each)
If however I get another 10 -20+ pips out of 30% parts - that'ts great - cream on the cake ;-))