If you, as a player, have two starting cards which don't have an ace, reliably hit in case you have accessible eight or less and reliably have on the off potential for success that you have 17 to 21. If you have nine, check if the merchant has three through six and twofold, regardless hit. For ten, twofold if the dealer has two through nine; if not, hit. For 11, hit if the seller has master or twofold if the he has two through ten. For 12, stand if the merchant has four to six (regardless, hit), and hit if he has a couple. For 13 to 16, stand if the merchant has two to six, if not, hit.
For starting cards with an ace, reliably have if you have an ace eight or an ace nine. For a specialist two and a professional three, twofold if vender has five or six, regardless hit. In case you have a specialist four or a star five, twofold if he has four to six, if not hit. For a specialist six, twofold if he has three through six, hit accepting something different. For a master seven, stand if the seller has two, seven or eight; twofold if three through six, hit accepting something different.
If you are playing sets, reliably split if you have star matches or eight sets; reliably a few tens. With two-pair or three-pair, split if the merchant has two through seven; if not, hit. Several fours encourages you to part if the merchant has five or six, regardless hit. A few fives, you twofold if he has two through nine, if not, hit
