Well, I usually try to sell the tokens from my bounty as soon as it's posted on the floor. It will then wait until the price drops a lot by dumpers and then buy a little later for a better price.
You sell immediately you get the token and I believe you sell below the ICO price. You're as well among those who are responsible for the dip in price for most ICO's that manage to list during the bear market. Just try and change your strategy to suite the market conditions.