Unfortunately I never owned PS4S for direct comparison.
But I didn't complains Cup2 comfort for my short 90min experience, I probably one of those moron who call PS4S soft.
I believe I'm among the earliest SC7 users in Malaysia.
Installed grey import before official launch here.
I'm on 13k km mileage, after 1 and half year. I think front can last another 15k easily. Rear is like new, just started to wear very edge of the TWI line.
I'm sure they can last 30k km if I rotate them in near term.
Size is 235 40 R19. Car is front bias AWD, 2 tonnes fat PHEV.
Driving style is gentle on acceleration, but turn aggressively. Use both feet to brake interchangeably. Often left foot brake and trail braking, genly start accelerate past apex, avoid sudden power jolt.
Performance don't need my review. Plenty online, I can testify they are not over exaggerating.
Beware of aquaplaning, foreign test the water is no where as deep as ours. In very heavy tropical storm with 2 inches of water on highway, I could only drive 30-50kmh. Old Wira, Myvi 70-80kmh flyby... lol
Comfort side wall is stiff. I drop 5psi versus CPC6 before it. Noise is significanly drastically different on new pavement vs old light grey tar.
I read few Tesla Model 3P owners from Taiwan whack finish CSC7 in 10k km, probably throttle on/off driving style.
End of the day, for daily commute the tyre temperature is often below the designated performance temperature. For me it will last long enough that I get bored and wanted to try different tyres before thread finish.
Wanted PSS5 but still don't have my size. Maybe will try PZ5 first. Finger crossed.
If I had to guess what vehicle you drove with the SC7, it's the S60 haha.
If the SC7 is expected to last around 30k km, I'd stick with PS4S as the price difference evens out in the long run. And it's more comfortable to daily too.
Glad you mentioned PZ5 as I almost forgot about it. I'm super excited for this tyre too as it seems to be the new king of UUHP. Not sure what's the lead time to special order but none of my usual shops are keeping stock.
Thanks for sharing your experience with the SC7.