I ran the Federal tyres on my old track Nissan 180sx. Very capable tyre but lethal whilst still cold! (caught me out a couple of times at roundabouts)

I think with all of these tyres, you really need to get a bit of heat in them before safely relying on grip.

When I eventually get the Escos mapped properly, i'll be looking at a new set of track wheels. I am currently eyeing up Zestino Gredge tyres. Similar to Federal RSR but apparently better track day grip (Soft compound)