As far as the Caltracs go they do have the ability to change the IC,IMO. Sure the front eye spring mount remains the same and fixed, and its a single point.

But the two seperate contact points of the front swivel, upper{spring] and lower[bar] gives it the abilty to change the IC,IMO.

It reacts to the car,IMO like a Mini 2 point, 4 link, and I mean Mini. It also stiffens up that front segment a bunch. All in all the Caltrac setup is not a bad design and works great for alot of 9, 10 second combos.

Sure its not nearly as good as a 4 link or the triangulated system, but I wouldnt hesitate to use it.

mike