Got 15 interested guys, picked two and spent the summer with them hacking on a project. We lived and worked in a tiny apartment, all sleeping in the same room. Best summer of my life.
Wow. That's "hardcore".
The room we slept in could barely fit a bunk bed and twin bed (which is what we did). Regardless, we had such different schedules, it didn't really matter. Usually when one person was asleep - the other two would be working.
Can you share any links?
I dropped out first, started a company, then came back just in time for him to drop out and start the company we're currently working on.
You really need to test all aspects of the relationship with cofounders. So deliberately acting angry to see what they do or needing help and seeing how they respond are examples.
Spark is one thing you notice if things work out. Good luck!
Seriously, please contact me if you are interested (in our project, what we're doing, etc):
nathanatlitepostdotcom
[I should clarify: by "YC cofounders" I do NOT mean co-founders to apply with me to YC. I want "YC people": cofounders who are otherwise involved, inspired by or motivated by YC.]