Pretty sure RCI is completely worthless unless your sample size is absolutely massive. I mean come on you have so many obvious river calls/folds(or at least they should be) that the times you actually seriously have to sit their and count combos aren't going to make a huge difference on the overall stat. It's only useful if you are calling WAY too much or folding WAY too much otherwise it's probably the most worthless stat.

Also looking at SB/BB and isn't as valuable as looking at SB/BB versus steal attempts.