The game is the following:
any 6 card hand no bust pays at once 2:1. including against ace or 10, no hole card.
Rest of rules: 6D, ENHC, double only 9, 10, 11, DAS, ES10. after split aces you can hit as often as you want.

My question: what is this bonus worth? i calculated an advantage of more than 1% for the game, but am i right?