I currently have 315/25/19 and 235/35/19 Michelin PS2s and I'm disappointed in the performance. I'm considering running Hoosier A6/R6 for the street. Any issues with these not getting up to proper temps on the street? Other than rain and life expectancy, any concerns about running this setup on the street?

 

Once warmed up (might be hard to responsibly keep them at temp on public roads though....) those tires will throw rocks (and anything else they can pick up) all over your car. Hope you have plenty of touch up paint, own an auto body shop or don’t mind that your car will look like it’s been through a sandblaster.
Seriously though, check out TireRack and do some searching/comparing. There are a few tires out there that could provide slightly better dry handling than the PS2s (Pilot Super Sports or some of the Extreme Performance Summer tires for example).
If that doesn't work, you might consider some suspension upgrades if you haven't already gone down that road. That would definitely help with handling/road holding.

 

Best grip for street legal tire= R6. I would just be careful which roads you drive on- because they pickup everything= hence nails. I have driven 3 full sets of R6's on the street. Love every minute.