I'm currently running on a pair of Firestone part worns. The ones I had fitted last year (Vredestein or Kleiber, I forget now) suddenly started wearing quickly. I'd had an advisory on the last MOT about a ball joint but that vanished on the retest. Had the service station/MOT station look at it but they couldn't find anything wrong.
If they had found anything and repared it I'd have put a pair of Toyos or Kumhos on but delayed until I found the reason for the tyre wear.
Went to the CCC Northern in Wetherby early on the Friday only to discover that nothing was happening there.
On the way home, called at a scrapyard in Bishop Aukland, intending to get a spare on an alloy, rather than the steel that I have. Nothing suitable but I did check the tyres on leaving, fortunately, and discover they were slicks by now.
Went to a part worn place near the scrapyard and sourced the Firestones, in the right size for the car (none of the others are

) and they rode better than ever, despite the guy not being able to balance them.
They are up to now not showing any signs of wear at all although they were only a stop-gap and not expected to last for more than a couple or three weeks. Not bad for £40 the pair, including fitting
