My biggest concern with making a significant drop in the PB value limits is that it seems to me that the PB values of players (especially pitchers) don't seem to make sense in a lot of cases. Here are a few examples just from my teams 2002 stats.

Ramon Ortiz - PB Value = 4.468 Grade = 6.1 Clutch = 6.7, Innings 217.1
Livan Hernandez - PB Value = 2.524 Grade = 3.7 Clutch = 4.3, Innings 216
A.J. Burnett - PB Value = 2.384, Grade = 7.5, Clutch = 5.1, Innings 204.1
Rick Reed - PB Value = 2.133, Grade = 5.4, Clutch = 7.3, Innings 188
Miguel Batista - PB Value = 1.703, Grade = 7, Clutch = 3.8, Innings 184.2

I cannot understand a number of things
(1) It looks to me like Ortiz and Burnett are close. Why is Ortiz PB value almost double Burnett.
(2) How does Livan Hernandez have a higher PB value than Burnett, Reed, and Batista

I have seen more examples of the same but these were very convenient to copy from one roster page. Based on these examples it looks to me like the PB values assigned to players can be very flawed in the case of pitchers.

My thinking is that if the PB values were consistent from player to player then limits can make sense. But for pitchers the PB values seem screwed up. And by imposing harsh limits when the PB values are out of whack it would be imposing a limit unequally (based on whether you got the guys that put up good numbers with low PB values).