I'm SO glad to see more people using archetypes without demographics like this! I've seen this build momentum since March 2014, and it really hits the spot. Thanks for this.

I create my archetypes (Thinking Styles) differently than you, but come to similar conclusions. :) YAY!

https://medium.com/inclusive-software/describing-personas-af992e3fc527

Nicely effective sample case study, too!