Hey Mr. Jupiter,
I really, Really, REALLY like your builds!

I particularly like some of the subtle ways that you modify powers with Limitations and Enhancements.
The Unobtanium Scrapper, for instance: love the Extra Effect: Certain Structures for his Special Attack. I also love the limitation on his Armor power. Brilliant.
The Density Altering Android: LOVE the limitations on the self-repair. I also love the two different modes for Density Increase.
This is a question, not a criticism. What do you use for benchmarks? Agility 3 seems a bit high to me for a character whose basic power set doesn't necessarily call for it. I wouldn't ask the question if the character had Cat powers, as this screams super-human Agility, but a kid whose basic power is becoming insubstantial doesn't necessarily suggest a beyond human Agility to me.
Anyway, I ask this to get a sense of how indivduals in the BASH community go about interpreting Stats - not to suggest that you are somehow "wrong."
Again, thanks for this excellent work!
Best,
Dragonfly