these "front runners" you keep describing are very skinny crossply tyres.
they give less rolling response than a radial - in fact, i had mine turned a half lock without any serious change in direction at deep track.
this is the reason they make the car "more stable" - less steering response. effectively the only tyres gripping the ground in any useful way are the back tyres - the front crossplies "effectively" are there just to keep the front crossmember from dragging on the ground
kinda like fitting 90/10 shocks to the front - great for straight line racing but useless for the street.