I'm with you, Kyle on not puttiing them on. I'm only putting them on ones that are my favourites which to date are Aero Booster and Golden Guardian. I like to be able to reuse the pieces later on as part of other things I want to build.

Kyle, those Exo-Force units are great. I'm so jealous of your Supernova!!! I'm trying to get one but short of paying $70 for one, I don't have many options