Here's my follow-up (seems a decent place to put it):
I'd say that with the stock polish and average "hand", the BP needs dry to make the turn. So, I think its forte would probably be true medium oil. Although BTM's review indicated a stronger ball than that ( I didn't use the full leverage layout they did to maximize the flare; my pin is at 4.5" from PAP.), I found mine would flip. I needed something stronger; the oil is medium-heavy when we start the night, with a sudden transition. When I start with the stick finish Big Kahuna, I have to either rev it hard using a "B" release or play a lot straighter, almost down and in.
So when I came last week after trying the stock finish, I took it almost all the way down to 1500 grit, but not quite. I used Track's Clean and Smooth, which changes the surface to 1500 matte, but I used less than a full dose. It might be closer to 2000 grit, but still not a full treatment as you can easily still see most of the shine.
This made all the difference. I didn't need to use the "B" (stronger) release and I still had to stand about 5 boards deeper than with my BK. The backend was nicely continuous; I had little pull area, as once the ball started hooking, it didn't stop. I'm glad I didn't drill the ball any stronger than I did.
In fact, this ball's coverstock may, if sanded fully to 800 grit like the WC and the BB be as strong as they are, BUT it has a higher flaring core, which could result in even more hook. Spooky!
Aside:
I think the BK has finally surpassed the New Standard as my favorite Legends ball. As long as there's enough head oil, I can "swing it and bring it" or go down the boards, playing anywhere from gutter to 10 board. It never overreacts yet the backend is always continuous. The BP has much more backend and is controllable, but not as controllable as the BK, for me.
--------------------
"None are so blind as those who will not see."