0%. Go build some value. You'll make the connections you need as you go if you're successful - and it sounds like you're off to a good start. Even if you chose

0%. Go build some value. You'll make the connections you need as you go if you're successful - and it sounds like you're off to a good start. Even if you chose to sell, 10-15% is too high. Investment bankers charge less. Someone might happily sit on your board of advisors for less than 1% and provide the same service.