Stealing early can be a pain in the ass, because you can get away with jumping back to 1st/2nd before the pickoff, at least that's what it was like last year. Admittedly, I haven't played against random players this year, didn't want the headache, so I'm not sure if it's been addressed.
Before I ban it/restrict it, I need feedback from other players. Last season, I would greatly slow down the game when a man reached first, hold on to the ball, and wait for the player to take off before trying to nab him stealing early. Problem was they would sometimes get back in time.
Don't abuse this sort of thing, just play sim style baseball, respect your opponent. We all want to win, but winning at all costs isn't something we want. We all want to kick back for a couple of hours and have some fun.