If you are talking about the new Pilot Super Sport Acoustic tire in staggered 245/35R21 and 265/35R21, I put them on my P85+ today, and removed a set of reasonably fresh (more than half tread) PS2s. I purchased these PSS Acousics on impulse as I like to have quiet tires. For the last year I've been running 19" wheels with OEM Michelin Primacies on my P85+ and I think these are also generally very very quiet tires, albeit more compliant.
When the PSS Acoustic tires arrived, I returned my original 21" staggered wheels and PS2s into service until I got to the shop and swapped tires.
I am afraid I can't yet give you any sport/performance input, and since they have only been on the car today, I cannot give you any wet weather input. But I can tell you that the PSS Acoustic tires are indeed quiet and an improvement on PS2s and, to my ears, and improvement on the Primacies in some ways.
Caveat - tire noise is very subjective and my ears are not 20 years old... and quite a bit of my high frequency hearing has evaporated through years of airplanes, motorcycles, shooting sports, rock & roll... and age. I also believe as these types of tires wear they get louder and louder. When new they are the most quiet they are ever going to be. Maybe other types (Off-road or Mud/Terrain) tires wear off the tread blocks they get quieter, but that's another matter.
The Primacies were quiet but had a lot of "ping" to them on concrete seams and such. Liken it to a tin drum ring when contacting a seam in the road surface. Possibly because they carried a higher inflation pressure, I don't know (not an expert). Dead quiet on asphalt, but they do sing somewhat on rough concrete highways. I never could quite "hear them rolling" (a lower frequency) like I could with the PS2s.
The PS2s don't have the ping but, again, I could "hear them roll", and I don't find that noise irritating. Dead quiet on asphalt, but singed *like a banshee* on concrete. I started carrying and using earplugs for long highway trips on these concrete roads with the PS2s (never felt or heard the need to use the earplugs with the Primacies - never said *holy ** those tires are driving me nuts!*).
After 1 day with the PSS Acoustics: have the "rolling" noise of the PS2s, but none of the "ping" of the Primacies and about the same concrete noise as the Primacies. Right now I say it is a win. I have a couple more of test concrete roads to try, but I would guess half or less concrete noise that the PS2s had.
Sorry if this is not an answer to your question, and I have no sport performance input or wh/mi info so far.
BTW, I think I'll have a freshish set of PS2s for sale if any of the DFW area needs some P85+ tires on the cheap, feel free to pm me.