Quote Originally Posted by Gronbog View Post
In his article, Grosjean provided basic strategy deviations for blackjack with various coupons. There are only a few and they aren't worth much.
I just found out the Wizard of Odds also studied this and the results are here:
https://wizardofodds.com/gambling/promotional-chips/

However, this research is still incomplete. If the player cannot split and double down on a match play coupon, it seems nobody hasn’t provided a basic strategy deviation.