Yes ...
Too tight to purchase two new tyres when only needing one
Having used MPS4S on a few previous cars I find them `soft` in the sidewall. the MPSS has a superb `firm` feel, reminds me of MPS Cup 2`s
If changing to MPS4S I should probably do the rears first, currently on 5mm
EDIT ... the PS4S * marked rear is not available here