Originally Posted by CombatNinja
So please explain to us then how fitting stock RFTs up front and regular tires out back will, by default, result in significantly more understeer. I'm all ears...
Do you understand the basics of car dynamics?
More grip in the rear means the front washes out first aka understeer. Or in your case you'll hit the wall going straight.
More grip in the front means the rear will give up first aka oversteer. Or again, in your case, you will hit the wall backwards in a big cloud of smoke.
And once more, it is a VERY safe assumption to assume the non rft tires are grippier.