the tj change and candide pow are the same ski, the dynastar big trouble. I had a pair of those a while back in a 186, they were alright, definitely too stiff for a park-specific ski, especially if you're a smaller dude.
colbys ski and that other candide ski are old troublemakers, and i dont know of anyone who had those skis and didnt love them...depending on whether or not youll be skiing a lot of park, that might be the way to go.