I don't get it, out of all the 6th cat choices for pitching why go with IP? So I'm guessing no max limit for the season either, is there a min? How many players are in this league? My guess is every team is going to be drafting SPs left and right, since the IP cat will give them more value and you have the option of starting 6 on your roster.
OBP as a cat favors the sluggers more, as they're the one's who tend to lead this category. Just watch out on drafting high BA players with low OBP (Pedroia, Ichiro etc). They lose some value in this format.
...Boston papers now and then suffer a sharp flurry of arithmetic on this score; indeed, for Williams to have distributed all his hits so they did nobody else any good would constitute a feat of placement unparalleled in the annals of selfishness. -Updike