I hadn't thought about it in terms of 'how much of the success came from x" in the end state, only from 'how badly we need it now' kind of perspective.
I didn't mean to imply that equity paid for isn't deserved. There is tremendous risk in a startup (especially one desperate for funding), so they should be compensated well for taking the leap.
To clarify the dead wood comment, (without being too specific) it was more an issue of equity being granted in exchange for specific action and performance, however that activity was not completed to the agreed standard. This left me without what I had bargained for, and as you probably know better than me, issuing equity is far easier than clawing it back. To add insult to injury, this also gave the individual a 'blocking' stake in the company, and they used it to prevent me from raising additional funding from another party (even though they were unwilling to contribute more). Basically, had me over a barrel, it was a small part of their wealth and a large part of mine, and they drove business into the ground. By the time they realised they'd done critical damage to us (scaring off friendly funds, because they didn't want to lose their control), it was too late to fix it, so in their mind it was my fault anyway. I was so annoyed with the way things worked out that I quit the start up space and swore never to return... but a few years on I'm back...I'm just not made to be a 9-5er. I've learned a lot since then, but it is still a fresh nightmare.
A friend of mine recently had a slam dunk- an innovative invention and an international corp. that said "we'll take 200, where do we sign?". It was worth about $10M to them, for several months work. They were all engineers, but hadn't worked together before. They'd split the company evenly... but couldn't agree on how to finalise the design or service the order. The dispute got so bad that the company was paralysed, and couldn't service the order. Worse, IP ownership was unclear (never assigned to the corp) so it went down with the ship. It was a total debacle, almost unbelievable. The buyer just walked away, nothing got made, nothing got sold and the company is wound up.
Do you (typically) use options or issue stock directly? Do you just issue common stock? Or do you use voting / non-voting to keep control?
Did you just phone bash to find 'people in the industry'? Industry bodies? You've got a really wide range of inventions, you can't have had friends in all those industries :) (at least before you were famous :) :) )
Sorry for the quadruple barrel question... this is one of my 'hot buttons'.. keeps me awake at night more then any other aspect of commercialisation.