I went with KR20 and a Kumho Ecsta, pretty happy so far after ~200 miles of riding.
All three needed very little weight to balance out. My old setup was likely out of balance somewhere because vibrations I experienced before are now gone.
In my case the new tires, brakes, and drive belt adjustment make it feel like new again...almost.
Steering is definitely lighter and I dare say more precise, 16 psi front, 18 psi rear.