I was looking at one of the online casinos today and it had a rule that said after splitting aces and then getting a 10 that it counts as 21 and not a blackjack.

Two questions:

1. Is this common? This isn't how it happens in casino's is it? Ot am I living in the dark?

2. What is the change in house advantage for this rule.

Thanks in advance for any help.

Eric