PrinceDragon said:
Can you prove it (with a sim)?
Well, SP21 is just like BJ in that it is effected by rules, counting system, playing strategy, pen and bet sizing.
Do you have the book?
Anyway here's a sheet that shows how she got what she got in Table 6.17 and 6.18. You could also plug in the 1-20 spread she uses in Table 6.3 and get close to what that says.
Basically, she is kind of enough to give frequencies, advantages, and variance and co-variance in her Appendices depending on use if indexes from which you can do your own thing with.
Words of caution, it won't figure iut optimal bets and may not work completely when not playing all hands.
Thought it may help as at least a template for you since you said you have some 7/8 game.