I can't help but laugh, a guy with the name "Jim Feist Sucks" plays with First Fidelity, a book that Jim Feist's organization used to tout to no end and is rumored to have an ownership stake in.
Keeping a high number of books is a good thing. If not for the fact that you can spread your money out enough so that if one book does go down you're only out a fraction of your bankroll rather than your entire stake.
There are other benefits as well. The only con to being spread thin is you may not have enough in one place to hammer a number as much as you would like to. But then again with money management you shouldn't really be putting all that money at risk on one play in the first place! Just a thought.