Blackjack Any BLACKJACK TOURNAMENT players ???

I'm interested in talking Blackjack Tournament STRATEGY here with another interested parties. It seems this site is primarily counters...

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BlackJack is a basic strategy for hands without aces
If there is no ace in a hand, its value can be a minimum of 4 and a maximum of 20. The strategy to follow:

• if the value of the hand is 8 or less, a card must always be requested
• if the value of the hand is 9: if the dealer's card is betweеn 3 and 6, it must be doubled, otherwise a card must be requested
• if the value of the hand is 10: if the dealer's card is between 2 and 9, it must be doubled, otherwise a card must be requested
• if the hand is 11: if the dealer's card is between 2 and 10, it must be doubled, if the dealer's card is an ace, then a card must be called
• if the value of the hand is 12: if the dealer's card is between 4 and 6, it must be stopped, in other cases a card must be requested
• if the value of the hand is between 13 and 16: if the dealer's card is between 2 and 6, it must be stopped, in other cases a card must be requested
• if the value of the hand is between 17 and 21: you must always stop