I would suggest otherwise mate. After a campaign, the coins would just be introduced the market publicly, therefore, its value would not be as high up as it could possibly can at that point. It would be better to wait for a few weeks or maybe about a month for its value to go higher and stabilize. When that happens, that would be the best time to sell those campaign-earned coins. It's value would be better then, plus there are more transactions going your way, which would make it easier to sell.