Baseball is a sport that can offer you odds above 2.0 on teams that should be on 1.40. How come? It's called runline its exactly the same as -1.5 asian handicap in football hockey or any other sport.
But in baseball its alot better because its alot more runs (which is equal) to goals in a game which makes the chance that the -1.5 actually goes in alot higher. When sportsbook sets their "lines" they go so much on stats to much on stats in this case so they see that the best run producing team in baseball have an avarage of 5.5 runs per game and the lowest have 3.35 runs per game. Which makes runlines look pretty darn hard to win on but they really aren't. I'm gonna give you an example.

I belive it's really a personal thing on how you like to rollover your bonuses but I like to share how I have done things since the beginning of sportsbooks online (I dont want to say this is correct or anything but atleast I have had good success with this method.)

First of all the bookmakers biggest goal is to get you to loose your deposit + your bonus, dont think anything else.

Their bonus terms & conditions gets tougher and tougher. I remember back in the days when Gamebookers gave out a 100% deposit bonus on 100€ with 1x rollover req. so you could actually not loose any money.