AMonkey: "It's a much more complicated sidebet than you may realize."
Really? Looks like the "Tie on 20" would be about KO>=+28 or HiLo>=+6. The "Tie on BJ" sidebet would have a lower index. Performance boostable by tagging 2 thru 8 as +1, Ten as -1, Ace as -3.
AMonkey: "You also will need a special playing strategy intended to maximize ties. I'm quite certain it's very beatable"
Nope. The "Tie on BJ" should be worth $50-$60 an hour (email me for the index) if the counter can bankroll it (unlikely--the Kelly fraction would be 1/350th of the edge), but the "Tie on 20" looks like a waste of time, even if you try to maximize ties.
BTW, Degeneerit, you are questioning the knowledge level of the counters here, but your own proposed playing strategy is clueless. The basic strategy chart pictured has nothing to do with betting on a "Tie on 20." If you have wagered on a "Tie on 20," it would be pretty stupid to stand on soft 17. The BS chart you show is for a different sidebet, obviously.