Got it, thanks! FWIW my motivations are: 1) I work with many CTOs, so I have a good perspective across a lot of companies. 2) I'm always looking to learn more about what sorts of company-agnostic issues CTOs struggle with. If you ever change your mind, I'd love to join the group.
@jetsnoc: I totally respect wanting to keep this open to just startup CTOs, but if there's any wiggle room on this, you should totally let lpolovets in. :) As an investor in my company, he's helped me think through specific technical management issues, and is really eager to aggregate knowledge across his network.