From my personal expierence:
The BWP seems to have a longer lifespan than the BWB.
My father has a BWP for about 3 months now with about 100 games on it, and it still reacts the same as the 1st day.
Wish I could say the same about my BWB with only about 40 games on it, and big reaction change since day 1.
Don't get me wrong, it's still a good ball, but not the oiler it was the first 20 games.
(We both take very good care of the bowlingballs, and play about same line/style)
Edited on 5/5/2008 10:30 AM