I never buy or sell at the scalping price, the first buy or sell is 5 ticks second is ten. Fridays chart
Over the years one sees backtests optimized like this (curve fitted) posted in forums. Nothing new here, same smell, different shit.
It looks like you just buy/short the high/low of the previous 30 minute range, add to the long/short if it continues to break 30 min highs/lows and reverse if it breaks the low/high of the next 30 minute range. Not a criticism, just an observation. Sometimes simpler is better.