The long run index is (sd/ev)^2, or the number of hands needed to offset one standard deviation unit (one sigma) of negative fluctuations, or the number of hands needed on average to double a bankroll that is the optimal number of units to have maximum overall long term growth. The following are my declaration of a new (via suggestions in posts by Theef) system of game ratings based on the longrun index.
rating; long run index range; official abrev.;official glyphon;
Sucks greater than 25,000 hands SU :-(! (throat slash)
stinks 20,000-25,000 hands SN :-! (stiff lip!)
sick 17,000-20,000 hands SK :-0 (obvious)
fair 15,000-17,000 hands FR ;-! (a wink better)
grows good 12,000-15,000 hands GG ;-)
yeah baby 10,000-12,000 hands YB :-) (smile at last)
excelent! 7,000-10,000 hands EX !^ (pointing upward)
boing! under 7,000 hands VB ,!, (the finger to pit)
(You are on your own as a matter of principle to convert these to SCORE equivalents)
Supose you are in a certain "name" southern casino where the dealers are the primary defense against counters. Some dealers just cutoff a whole deck in their double deckers and allow a 1 to 4 spread, while others allow 1 to 6 and deal down to 25 cards. You could get a text message on your clio that simply says, "FloYB3." This would indicate to see Flo at table 3 where she is allowing 1 to 6 and dealing to about 30 cards.
You are watching carefuly your team leader being backed off at a well known casino on the Strip, but your act is still OK. Your leader wishes to let you know of a dealer to avoid. In a restroom stall you see this: Dan:-0. Dan is cutting off 2 decks in a 6 deck shoe, h17 DA$, LS.
I hope you see the obvious practical applications of this. Thanks (unless he objects) to Theef for inspiring this.