Thanks for your opinion and experience, is very interesting!
I also think to install PSC2 but i thinked are bad in wet on street, if i understand you tell that are not so bad, correct?
PSC2 are OE delivery of 458 speciale .
Do you tested the BS001? For you are better than 050A?
Always in my humild opinion, the PSC2 are suitable for a 911 GT3, a 430-458 Scuderia or that kind of car, a "trackday car", that for me is the closest to a racing car that a road legal car can become.
The 575M, a proper GT, is better suited with PSS, as its a tremendously fast road car that can attend a track-day session and defend itself (with PSS fitted indeed) decently, but you can never expect the car to be a marvel in that enviroment. Yes, it can cope with it, can defend itself decently, can be fast but will always be way to heavy, long, under-powered in braking terms and uncapable on the limit because the suspension wasn't designed for that task. Indeed that task is for a 430 Scuderia, it was designed for that porpouse.
Changing roles, for a fast road trip, the 575M will be far better suited to the task than a 430 Scuderia, because it was designed to be the best doing exactly that. Silent, confortable, thought and built to cover ground like a lightning with zero effort... the Scuderia will blow your ears, break your back, and will demand you constant attention because every single bump will need correction in such a direct act-response calibrated chasis (and your wife will be fed up in 50 miles)... as the 575M on track, the 430 Scuderia can cope with it but on mountain course fully lit or a trackday session is at home, not travelling fast during long distances... a 360 mile blast in in three hours time can be a pain on a Scuderia while its a joy on a 575M.
So, as its not a trackday car, again always in my opinion, the best of a 575 (with HGTC, FHP or plain) comes with the PSS. The PSC2 will just make evident how much the car weights and will outperform the suspension... and you can think in changing the suspension to be able to unleash the grip available... and done that you will realise the car has became almost undrivable on the limit because of the weight as the inertias past the limit will be so difficult to deal with the car will became even dangerous.
Really, with PSS the car is a joy... and if you have FHP or HGTC, more even. But my opinion about fitting the PSC2 and try to extract what they´re able to give its nigh on impossible in a 575M, it wasn't thought for it.
Another theme will be to fit them just because you want to and use give them road use. You will maybe be a bit faster on the limit (just maybe), will last one third compared and if it rains will be quite nice, but less capable than the PSS.
As my car will never enter a track-day (that's the GT3 task), my car will run on PSS (or the best sport-street rubber compound available).
As an example I have a friend that started three years ago with a 997 Carrera S... he´s a very good driver and was dead fast with the Carrera S, but wanted something more edgy and potent, for mountain course driving on weekends and trackdays. I suggested him to go for a GT3, but he ended with a 997 Turbo a year after... and fitted Bilstein PSS10 with H&R springs, plates for extra geometry adjustment, strut bar upfront, bigger Brembos with Endless pads, ECU remap, complete Akrapovic exhaust... and the car did perform worse in street and still couldn't match a GT3 RS 3.8 in trackday pace having 150Hp more. Finally, eight months ago he returned to factory specs the 997Turbo, sold it and got a GT3 RS 3.8. Now he has a uneraseable smile every time he takes the car for a spin or attends a trackday and always says to me "please don't tell again you told me this was the way to go, you were right, now I know".
What do you want from a car? Get the car that ticks the right boxes and if you do nobody will be happier. Try to force a car to do what´s not intended for and you´ll end with an empty pocked a crap to drive. Or so I think.
About the Bridgestone S001, haven't tried them, so cant give you an opinion.