Depending on volatility, I tend use a much longer bar than you as I generally am looking at swing positions that may represent partial hedging of my option positions. Right now I'm using a 30 minute bar. Yes, I chased badly, but at least it was on minimal size. Now looking at buying a April 9, 2020 2470/2340/2210 ES put 'fly @ 20.00. Positive theta trade with neutral gamma. Delta the equivalent of 1 short MES per 'fly. If filled on the 'fly, I may put an order for another while closing out my short MES at the market.