Index Gap Filling Target Strategy in Sudden Falls...(Rare Cases)

Broke the trend line, fine retest and sudden fall. In such cases of sudden fall which happens very rarely, booking profits at right support is very important and you can find the right targets too. Targets should be the closing of the previous days. You can book profit at the previous day's closing and enter again with smaller stop loss targeting previous days closings, this is how index might fill the remaining gaps due to gap up openings. This same concept worked in Nifty also same day. Nifty took support exact at the previous days closings. So always mark the closing prices while market extreme volatile. I have checked this multiple times so please test this in live market while shorting Nifty or Bank Nifty. And please be free to comment on this, anything and everything is important. Let me know the con's of this strategy and more pro's are also welcome. Express yourself and like this if you actually understood this concept. Thank You!!!