As is usually the case, the practice session gives you an idea as to how the pattern may play, but you shouldn't be married to it. For example, I had absolutely no look with my Idol during practice at The Orleans, yet I started Team with that ball and didn't put it away until the end of Game 1.
I didn't bowl the BJ, so I can't give any insight on how that compares to what you see during minors in the SP Bowling Center. Again though, to me, both patterns are softer than they have been in a few years. I'm not saying they're wide open and simple, but they are far less punitive as there is some extra hook out and more hold in. As I've said a few times now, the guys and gals who know how to read ball motion and who can execute/repeat shots are likely to put up some really big numbers this time around.