Clarification
First and foremost, I am a beginner, as you can tell. I'm willing to invest a replenish-able 15k bank roll. I've read quite a few books and decided to take up K-O, as it seems one of the easier count for beginner. K-O authors recommend 1-5 spread for single and double deck. Thus for green chips, it sounds reasonable, but for red chip I am willing to spread 1-15.
There are two local casinos by my town. One offers 6 decks games with this rule: H17, DOA, DAS no RSA at $5 minimum (75%pen). But as soon as you bet $100 or more the dealer would yell to the floor "check play". The other casino offers double decks with this rule: H17, DOA, DAS, RSA at $25 minimum (pen varies on dealer but usually no less than 60%).
Please advise!