I have the TC right now and I have ridden the chronic before. The TC is an amazing beater ski. It takes hit after hit like a champ. Not the lightest ski in the world, but nose butters and presses are ridiculously easy. (Disclaimer: Absolute trash ski if you're doing large jumps. Too backseat and you wash out easy) Makes butters feel insanely smooth. You can definitely FEEL the difference between the skis. TC feels softer and has more give. the chronic will chatter when skiing bumpy hardpack, the TC just flexes right over stuff.
TL;DR ---> Great for butters, softer than chronic