A fair blackjack review has to hold both ideas at once. Duel's live table pays 3:2 on a natural and stands the dealer on all 17s. Those two rules are player-side. The same sheet then restricts the most valuable pair decisions.
You cannot double after a split. That clause is worth about 0.12 of a point by itself. You get one split per hand, not a climb to three or four hands. Resplitting to four would be worth about another 0.11. Split aces take a single card each. There is no surrender at all. Late surrender, if it existed, would be worth about 0.07.
Seven splitting decisions flip once doubling after a split is gone. Twos and threes should be split only against a 4 through 7. Sixes only against a 3 through 6. Fours should not be split. Aces and eights remain automatic.
This is why a headline RTP in the high 99s can coexist with a strategy chart that looks tighter than a downtown six-deck shoe. The table is cheap on the natural and expensive on the pair. Players who bring a full-DAS chart to this felt will leak the 0.12 they think they are collecting.
Duel Blackjack Pays is one of the few live-table write-ups that prices the gift and the clawback on the same page. If you only remember the 3:2 line, you will overplay the pairs. If you only remember the split limits, you will miss why the seat is still better than a 6:5 stream.