Losing my Solo2 virginity...
Hybrid Track Day#1 at Streets of Willow, where I did a tire comparison between three 300UTGQ 195/50-15 tires.
I ranked them in this order,
1) Potenza RE730 on 98 GSRs
2) Proxes FZ4 on 94 GSRs
3) Ziex 502 on 97 GSRs. I was disappointed in this tire, it's on par, or a smidge less than Nitto NT450.