Very interesting! The plastic one did start out a little bigger, but no question it grew faster. Both had the same light?
A goal of mine is to move all of the c/s plants to clay pots, but TC/CC's would be last on the list, if I would do it at all. Hanging is what I prefer for these, and they're just so thirsty. I don't have any trouble with these rotting, quite the opposite, occasional wilting.
The flower on the right is especially pretty!! Both are TC's, BTW.