Im not excactly crazy monkey ballin, but if no-one has jumped on it by tomorrow evening I'll post my 2/4 graph, I'm not back at my main computer until then so I don't have access to it. I must say though that 30k hands doesnt say much really. How many hands can you load with the current PokerEV? The last time I tried I couldnt load my entire db.

In general I'd think that a big gap between won w/o sd and total winnings means you're putting too much money into the pot and then folding. This could mean bluffing too much (or in the wrong spots), bet-folding too much and perhaps calling too thin on early streets to give up on river.