This strategy is best using a trading technical analysis. Entry point using 200day moving average as a guide to find price hit over ATR bearish range as buying point is the safest.
To those who can risk better, he can make buying point within ATR range at the low side. Is more easy to have buying entry.
To have even more entry point, using 50day MA or 150day MA. The methods are the same. Even #Hodler can use it to get better average for better return in investment %.