I put a Centerforce Dual Friction clutch in a 70 GTO I had years ago and it worked great but the pedal felt like I was driving a Honda. I got used to it over time.
I think I know what you are talking about, somewhat of an all-or-nothing feel. I can't say mine feels like a Honda (My wife had a 5-speed accord, I hated that clutch feel, well the whole car with a passion).
