That's a nice pedal. Got mine used too. It won't leave my pedalboard anytime soon!
I used a Way Huge Aqua Puss for quite a while. I liked it, but the Carbon Copy has a longer delay time (600 ms as opposed to 300 ms), and I also like the Carbon Copy’s smaller size. I don’t really use much delay, so I’m sure I could have got by with almost any pedal, but I think MXR has done a very good job here.Did you try other delays before the CC?