As is usual for the TT they get the good stuff.....
Don't forget regardless of what it says on the side of the box regarding diameter it counts for nothing....radius is everything
The carrier keeps the pad in the same place which is where the work is done. So TTS or R32 discs braking is the same the TT disc is way lighter
I'm doing project mu pads for the R32 caliper, not cheap at £300 plus vat but you could stay out all day with them those together with the TTS discs work very well