It'll be your geometry set up..
Get a decent corner weight and geo set up done with more rear toe and and more camber up front than the oem set up.
I also find michelin tyres dont suit the lbft or short wheel base of the 1M- cups are great on the csl as are pss and pilot sports. ive tried all those tyres on my 1M and csl (some times back to back). I find 255 35 19 up front and 275 30 19 at the rear are a better size.
I'm currently running federal evo's for track and summer use at 28psi (on road)
They are awful in the wet but better than the Michellins in the dry ( cheaper too) and they last longer.
I run 255 35 19 and 295 30 19 on winter tyres for when the temps drop.
Hope that helps.
still find it tail happy tho- as can be seen here
https://www.instagram.com/p/BKBYJX8hWpB/
cheers Jamie