Whereas I think most all my profit when I play shorthanded limit comes from the river. I'm not even sure if I'm a good player on the other streets =) But on the river, I know I make many bets per hour more than my opponnents, and its primarily because I value bet with weaker hands than my opponnents when they are good, and check more often when I think my opponnent will take a stab at it.
I still don't know what I'm doing on the dang flop and turn yet =) And I've logged thousands of hours. I think shorthanded becomes more instinctive than anything else. If you told me to tell you a specific shorthanded strategy, I don't think I could do it.