I can tell you my thinking. I sold my long term holdings in the 50's.
I bought in again right before earnings. When the earnings came and didn't have any effect on the stock, I sold immediately for about break even.
The stock seems to be trying to bottom here so I'm in again at about 30.7 which I'm still holding. If it bottoms here I'll see where it goes. If it breaks down again to 25-26 then on the next bounce back to 29 or 30 or so I'll sell for a minor loss.
I'm betting smaller amounts now than I did with my original holdings.