Yeah, pretty much what Impending Doom said.
Also to add to that, having a ball that "transitions faster", doesn't always equate to more motion, or a stronger motion, especially if the ball has transitioned before the end of the pattern. A weaker Mb (PSA) placement of say 5.5"-6" can have the look of a "stronger" reaction covering more boards, because the ball transitions at the right time. A ball with a 3"-4" MB, will transition faster, but could have the illusion of not hooking as much and appear "weaker" because the ball has satisfied it's preferred spin axis so quickly, that it softens the backend reaction. The flip side of that, is if there is enough oil on the lane for the early transition ball to actually go through the proper phase at the right time on the lane to actually show a stronger reaction, or more hook, than a ball with a slower transition drilling (further away from the PAP) that would shoot through the breakpoint.
Again, this is as you said, with all other things being equal, pin placement from PAP and VAL.