Got nothing to do with guessing right or wrong. Just have a few different books, SIA in particular for dog odds and watch their lines closely. I've gotten 13 scalps now in the first 4 days of baseball, and none of it involved guessing. The books I use are SIA, PlaytheScore, Pinnacle, 5Dimes, BetJamaica, and Bet365. Throw open active lines on Pinny and you'd be surprised how fast you can catch a lot of these other books napping, particularly on over/unders. I too have SD -175 and Pit +182, and none of it was done through guess, just sheer paying attention to lines on various books. It's not hard to do... just throw open active lines on any book you can get them at (or your F5 pushing finger will get a workout) and just check lines every so often against each other. You'll get lucky at some points.
I've increased my bankroll just under 1 percent (like .96%) over the first 4 days of the season. If this trend keeps up, and so far all of the days have looked similar, without risking a penny, I'll have increased my account by at least 50%... not too shabby of a season might I add. Also, the more books you've got, the better, but the more time and patience it takes to find these scalps.