Used to like to play futures till I realized how much vig there was. Also used to play series's too, till I smartened up. In my case at least, I can get reduced juice on Hockey and Bases on individual games but not series's, so I just bet the individual games. Same with NBA, spread betting vig is almost always smaller when compared to series prices. Plus it's easier to manage your money using Kelly when money isn't tied up. Plus correct money management on a 10-1 future, is to figure out your edge % and then divide it by ten so you're not over risking. Not really worth it IMO.