If you are interested in buying ICO coins, then the best time is when bounty hunters dump the price on the first listed exchange and then buy, if you know everything about the coin what are you buying.
I agree with you. If the team decide they give too much bounty pool, the project always see big dumps after bounty distributions. But I haven't seen a good project with a long time bounty award distributed, the projects listed on the exchanges don't distribute bounty

some project didnt make any ico stages.they already have private fund to start their projects.usually this kind of projects have no bounty campaign to make their project known.but i think there are several projects that although have big allocation for bounty campaign , but its rate still survive when it listed in market.