Had old Micheline Pilot SS on the Snake and they were hard(2015 date codes). Just had Kumo V720 ACR 355 mounted on the rear and Kumo V730 275s on front(same tread, similar compound). Weather today was in low 50s so I made sure to warm tires up with spirited use of my driveway before making any notes. Was not able to do much of "at the edge" driving but was able to push it in a few turns.
Here are some of my observations.
Obviously, car has changed but not necessarily for better in all the aspects. There are definitely more traction and back feels more planted under acceleration. But surprisingly to me there are more body roll and less precise steering feeling. Car lost some of it's nervousness but also became much more pedestrian in a sense. It feels more fluid in some aspects but less of the surgical knife feel I got in the beginning. So here is some of the things I need to do to it
Coilovers. While Car can definitely use a set of high quality Coilovers, preferably with short helper springs. I think MCS single adjustable is a minimum I'll need on it to get control of body roll while preserving some road comfort.
Solid bushings and steering rack links. Adjustable sway bars - I would like to preload rear a bit. Bump Steering correction - need to give a nose a better sense of direction especially considering how heavy it is.
LSD - maybe I did not had to get one, Gen 4 LSD preformed good enough with new tires, but with a lower gearing and some bolt on mods it should be relevant.
But so far, definitely a bit less thrills and less smile on my face

I guess hard old rubber might have some benefits.