What was this arbitrary adjustment based on? It's based on adding a base to slugging every time Pierre steals a base and taking away a hit from his OBP every time he gets caught. We've already discussed how that doesn't work because of the fact that a traditional double drives in runs. You adjusted by an arbitrary 10 slugging points to make up for this. I don't see how you got that from anywhere besides just making it up. This also doesn't take into account that OBP is more important to offensive production than SLG. OBP is more important-but important enough to take the 20 points in OBP rather than the 70-80 in slugging? Yes, my number is a bit arbitrary, but think about it. The only situation where a double and a single and a sb are different is one of the following situations: 1. Runner on 2nd-Pierre singles, and the runner stays at 3rd, and Pierre steals 2nd. 2. Runner on 1st-Pierre Singles, Runner goes to 3rd, Pierre steals 2nd. 3. Runner on 1st-Pierre singles, Runner goes to 2nd, double steal. That's it-that's the only 3 situations where it is different. How many times do you think any of those situations have actually happened this season? I have seen very few of these occasions, so the formula still gives a rough indication of his actual production. Edit: By the way, I meant that taking the 10 points off was the part where I estimated the number of times those situations have actually happened to make it different. I calculated the original number of actually adding 80 points to his slugging. Second Edit: I can confirm now that 29 of Pierre's sb's are with only him on. So at least for those 29 sb's, it was the same as a double-and I know at least 3 or 4 more are double steals where Pierre stole 3rd and a player stole 2nd behind him-so there are only a handful of steals at most where a double would have been different than a single+sb.