As a Bounty hunter I once made a mistake by selling tokens from Bounty that I received in a small market for $ 250. After 20 days the price of tokens that I sell is worth $ 1200. So the conclusion if you want to wait you will get maximum results. Believe every ICO project will prepare a good market in the future.
The thing is if you sell early although you earn lesser but you does not need to withstand the risk if the market of the coin suddenly make a big turn, sell late you are earning more profit can also be a bigger loss.