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Skunkfunk9,
I have Kevin Blackwood's Play Blackjack Like the Pros, but I could not find the betting scheme to which you referred. Did you perhaps mean a different book? And would you please post a page reference?
At any rate, again considering the same 6D, S17, DAS game with 4.21/6 penetration, if you use a 1:10 spread, you can bet $0 at TC's of 0 & below, $20 at +1, $40 at +2, $80 at +3, $100 at +4, $120 at +5, $160 at +6, $180 at +7, and $200 at +8 and above, to have a 5.1% RoR (for a $10K BR), a win rate of $22.08/hr, and a std. dev. of $386.06/hr. You'll play 26.4% of the rounds seen. If you play the same schedule but in quarters (multiply each bet amount by 1.25), your RoR will swell to 9.3%, with a WR of $27.61/hr & a SD of $482.57/hr.
Now if you could find a better game, say with pen of 4.81/6 (62 cards cut off), then betting the TC in quarters will give a RoR of 4.9% (for a $10K BR), a WR of $36.20/hr, and a SD of $490.37/hr. Perhaps the book you were reading was for a game with better pen than the typical AC 6Der?
Finally, for the 4.21/6 game, if you want to play all and spread 1:10 while keeping your RoR below 5%, bet $5 for TC's of 0 & below, $15 at +1, $40 at +2, and $50 at +3 and above. This will give a 3.3% RoR (for a $10K BR), a WR of $8.11/hr, and a SD of $218.34/hr. If you raise your min bet to $6, your RoR will be well over 5%.
Note also that all of these results are for 6D S17 games: if you play H17 and/or 8D games, then you'll have to reduce your bets to maintain a 5% RoR.
Hope this helps!
Dog Hand