havent tried it on the long side but when the spx moves up it leaves a market profile footprint and over the last 20-30 months ,it has pulled back 20 40 points at some point each month,except maybe 3,so if you can scalp in and out to raise your average, when that 20- 40 point down day or 2 or 3 comes you are positioned to take a profit.. just a sample 6 out of 8 from jun 09 - jan 10