Thank you in advance, again. Everyone is very helpful, a plethora of opinions, thoughts & ideas. Bear with me a little longer. Still trying to decide between 2019 TT, or used TTs, can't get a TTs slot. Not much off MSRP on TT either.
I have driven a TTs (stock PDCC). It's an option on TT, not cheap, aprox 3500+. Other than keeping chassis level, in doing so does it stiffen of soften ride? I have been told both. One thing for sure TTs is a stiff ride for an old member, regardless of setting. Even F-cars are more supple than P-cars, TTs to Carrera s. Question #2 deviating stitching color, some P-cars appear to have thicker thread than others. Can not find any info to support observations. F-car offers 2 options. Sorry to compare P-F cars, different animals, no bad intentions here.
thanks again, pullover

 

PDCC makes ride softer in normal mode. Also check tire pressures - they can be set to full load mode, which makes the car super-stiff. Comfort tire pressures make big difference.

 

 

And it does do both. Just not at the same time.

This is not quite correct. Certainly, PASM modes effect the perception of 'stiffness.' However, anti-roll bars (sway bars) also effect the perception of 'stiffness.'

PDCC is - effectively - variable anti-roll bars. Driving straight, PDCC acts like a weak (soft) anti-roll bar. This means that the coupling effect of one wheel hitting a bump is not transmitted (as much) to the the wheel on the other side. This is then perceived as a 'softer' suspension.

However, when cornering PDCC acts like a strong (stiff) sway bar and this is what produces flat cornering.

Also, PDCC is always on. Selecting a chassis mode (Normal, Sport, Sport+) changes the software mapping.

In practice PDCC in Normal mode takes the 'edge off' what would otherwise be an uncomfortably jarring ride on bumpy, crappy roads.

If you will spend 99% of your time on smooth roads (i.e. you live in a part of the world that doesn't see salted roads and thus don't have pot holes) you probably won't notice a difference between a PDCC Porsche and a non-PDCC Porsche except on the track.

However, if you drive on $h1ty roads you will.

For me, I would spec PDCC if it was available (and I did.)