RWL tire choices

I bought and used the 275/60-15 Hercules HP4000 tires on the street, and last year used them once on the track also, good grip, went 12.15@190+KPH.
They have white lettering on the tires saying HERCULES HP4000. But I put the lettering side on the the inside of the wheel.
But believe me the pictures I added is me testing my new trans on these Hercules street tires.

 

Here some pics of this tire:




http://www.northhantstyres.com/hercules-hp4000.htm

 

I think the Mickey Thompson Sportsman S/T and Cooper Cobra Radial G/T are the same tire.