Went from 2$ free to 4K in blackjack once. Perhaps a skilled player of both could come to a good balance, allocating a certain % of poker winnings to a (mentally or on paper) separate bankroll for blackjack? That's how I first made the 4K, really good BRM. I went off the deep end and tilted in a sitting tho, but in theory, the plan was working. I'd even allocate extra money to bigger tournament risks if I won enough in blackjack in one sitting with 20$ or so.

I know this site is poker only, but would anyone like to discuss possible working strategies to Blackjack/poker mix like that??