I never thought in wildest moments that I be scalping 31 years ago, thought I be like a trend trader like everyone else-wait for the breakout. At some stage, and where indicators have their value, is indicating what can become almost impossible to do by looking, seeing where blocks of orders comes through, now it is much easier with time and sales, a graph every 10 seconds is better now but less so in the 1980s. I started to study, where in bell curve are retail entries and where are professional entries? The Fat parts of bell curve are for slaughter and the thin parts are scary areas as one is waiting for price to come, so like 90% of the time, I wait. So imagine you have a moving average and around that moving average is like 4 ticks above and below, and another set of 8 ticks, but you have to be also thinking, where is price within the overall Swing, some areas where price gets to minus 8 ticks in uptrend is longer than a half of corrective wave, can still enter, but one only want to stay in long enough till retail starts coming in with their small lots. Scalpers feeds retail and other traders that don't often go in the scary areas unless they are thinking they are late getting in or being stopped out.
I think most who eventually become profitable are in a way like other profitable traders, they evolve, they go towards one direction and end up totally different direction. One has to find their happy path and of course makes profits.