10 minutes? That's it? That's barely time enough to get introduced, let alone get solid, specific advice. An instant reaction to my start-up might be nice, but it won't be substantial information that I could truly act on. He would probably just have to fall back on the same information that I could find on his blog or Slideshare in order to fit into the 10 minute window.
However, 30 minutes or more, and I'd definitely consider bidding.
However, 30 minutes or more, and I'd definitely consider bidding.