[EnderIII]

If calling requirements are 10% of hands and overcalling requirements are 2% hands, then you'll net a whopping 25 chips in the long run.

Interesting question. Since you are essentially desiring to add variance, its unlikely you'll take too big of a hit in EV and might actually gain some if people are tighter than that.

With assumptions of 5% and 2%, you'll actually net nearly 750, which being nearly 10% of your stack is nothing to sneeze at. 5% isn't that unreasonable either being 99+, AJs+ AKo and KQs.