I owned Darryl Kile during his Rockie years. Here's a comparison of his real life numbers, and how he performed for me:

1998 MLB ERA: 5.20
1998 PB ERA: 5.69

1999 MLB ERA: 6.69
1999 PB ERA: 6.32

My ballpark is Comiskey.

I realize an ERA is made up of alot of contributing factors, and this isn't a complete story, but you can take it for what it's worth...

Rick