Unfortunately I've had first hand experience of T1R's.
But yep first hand experience and honesty is key.![]()
You also have to bear in mind a stiff sidewall so you can push the limits with confidence isn't for everybody

I had fk452s a couple of years ago, and while they were a revelation compared to the budgets tyres I had before I prefer the t1rs, grip feels to me as good or better and they're a better ride and quieter.
That said my favourite tyres are my michelin primacy alpins (going back on this week actually, so I'll get a refresher). They were very comfortable and very quiet, and I could throw it around in the wet cold weather, awesome.
Maybe I'll get some track tyres next year and my opinions will change but quite frankly I don't explore the limits like you do and as such probably don't have such a problem with soft sidewalls as you.