Supposedly it's valuable in +6.5 tc.
I like the square pairs bet 4-1 on any 20, the dealers card is meaningless in this. Plus it pays 1000-1 on pair of queen of hearts in a DD game. If the count is +4 with no Qh's out then bet $100 on your and and $25 on the side bet (thats the max where I played).
Super pairs just bets you have a pair, unlike tens do not count (I think a unlike tens should be a push). The payout is 15-1 the odds are 17-1. I think I lost $4 in single bets just to look like a ploppie, but I had a feeling that I'd win one and bet $5 and won $75. The dealer told me it's one you have to have a feeling it's going to win. Not scientific, but since unlike tens have no value there is no way to count.
If only a few types of cards had come out there might be a slightly improved chance that you'd get a pair later, but this didnt test well. You could wait till you hadnt had a pair in the last 20 hands then bet $1 for 5 hands, the $5 for 5 hands, then $25 for 5 hands. But that has no science behind it and would be called a voodoo betting strategy, stick to counting.