Accumulator Bounty Tournaments Reentry Strategy

What do you think is the best strategy in accumulator bounty tournaments, the ones where there are multiple Day 1s, and all of the finishing Day 1 stacks and bounties get added together for Day 2 (ITM).
While getting as big of a stack as possible through playing multiple Day 1s is valuable, there has to be a point where the stack is big enough that playing more Day 1s becomes -EV, since after first finish you already are ITM and under ICM every added chip is worth less than the previous.