From the reaction shape chart, it'd be hard to believe it's a PP.  I know those are not set in stone, but if that's supposed to be "typical", meaning early, smooth, continuous for the NS, I can't see it being a PP.

Also, there are two NS here in town and while I can see how the colors might make you think pearlized, I don't think it is.

SH

ns2 shined up will fit the bill, i have it and a polished big kahuna both with almost exact drillings. Both work well shined up and hit like mack trucks, for me the only ball i dont care for so far is the world class in there whole lineup. I picked up a guaranteed from allstar bowling cheap it rolls alot like new standard for less dough, same great hit and consistent breakpoint.

I get between 3-4 inch pins drill every ball pin over ring with no weight hole, so far it has made moving up and down with the legends/lane masters balls easy to figure out. I like these balls as much as my buzzsaw collection, i have recently had every old saw i have repaired from cracks and redrilled. The legends/lane master balls are the only series of balls that equal to the hitting power of my new/old buzzsaws. My guaranteed and green army bomb tonight were blowing the rack apart shot after shot, i had a hard time figuring out which hit harder. The ns/2 has been a very good so far when i have used it likes decent head oil and to be bellied on a 5-6 baord swing pattern. The Big Kahuna handles the carrydown better when polished than the ns/2 does more of a up the boards ball but still the same hit. Take it from a guy with about 250 old and newer balls there is no bad legends/lane masters ball. I have had a little success even with my least favorite the world class, if you would like to try a single drill i got in a trade its yours for 70.00 shipped paypal, pin is about an inch over ring dont know exact spans but around 4 7/16 area. The ball looks to have about 30-40 games at the most on it, very good shape but not perfect either some smaller wear marks on it.