i think the MT sportmans are a good frontrunner for the street,lots of racecars that end up on the street have short suspensiontravel and this is where a flexible fronttire is of advantage since they eat up bad bumbs and such alot better than radials do,they are also safe at higher speeds at the track. a friend of mine ran something similar to volkswagen tires on the front of his malibu,yes its a much heavier car but those tires did not seem to appreciate the higher speeds at the track at all,he tried it more than once and they ended up with broken cords on the sides of the tires.

the softer frontrunners are also better if you come down alitle hard from a wheelstand.

and its never a good idea to mix radials and diagonals,my duster absolutely hates radialfronts and diagonal rears get insane squirely when there is grooves in the road,on the edge of dangerous.