only issue have with these are they are hard to catch either on the way down or up, I remember just recently xpr dropped from 1.57 to 1.30 while it dropped I went in at 1.51

20 - 30% sharp drops are really a great opportunity to play a quick bounce.
I have done it so many times

The drops on these coins are sharp because people chase it with high leverage they get liquidated and some people panic sell it as they only like to see it going up.

Liquidations make the drop bigger and sharper.