As someone with his not yet successful company, I am against 1-year cliffs. I believe in the 6-month cliff and am considering dropping it to 3 months.
When I make a poor hiring decision, I usually know within 2-3 months. A shorter cliff forces me to evaluate new-hires faster. No one needs 1 year to determine if a new hire was a good fit.
But it works both ways; there will be people who you like who decide not to stick with you. You want to minimize the number of outsiders who hold shares in your company. If you don't grok this, you need to talk to more experienced people; this has to be one of the top horror story themes in startupland.
Also, stop kidding yourself. Evaluating startup team members is very hard. You probably have a longer ramp-up than you think you do, during which you have very little ability to evaluate people; also, there is a huge class of bad hire that starts strong and decays rapidly.
There are all sorts of ways you can motivate yourself to evaluate new hires quickly. Use salary or sign-on bonuses instead of vesting. Messing around with your company ownership to accomplish such a simple tactical goal says something about how seriously you take ownership; it's probably not something you want to be saying out loud.
I am very experienced. Re: the number of "outsiders" - not as big a deal as you might believe. Good lawyering helps.
Its better to be considerate and balanced. The cliff only exists to protect against bad hiring decisions, 6 months is plenty enough time to figure out that someone is a bad fit.
You are correct about shares not being a very good tool for motivating people. Your suggestions about salary or sign-on bonuses are actually worse because that takes away from the working capital.
You don't sound very experienced. I mean that factually, not as an insult. For what it's worth, I've been in "key" roles (lead engineering, founder, and m-team) since 1996; I've spent my whole career in startups. I am not making the horror stories up, and they've happened in places with extremely good "lawyering".
>there is a huge class of bad hire that starts strong and decays rapidly.
Exactly. Also, startups = growth. As you grow, the game changes and usually gets harder. Someone you hired to take you from 0 to X^10 customers may do an ok job in the first 4 months when you have to go from 0 to X customers but may be terrible at getting you from X to X^2 in the next 4 months.
>Don't be a jerk and cut people off just before their cliff.
Saying that it sometimes takes more than 6 months to really evaluate new hires in specific roles is not the same as saying let's cut people off just before the cliff.
>Do the right thing and reduce the cliff
It is not clear at all that reducing the cliff to 6 months is "the right thing".
When I make a poor hiring decision, I usually know within 2-3 months. A shorter cliff forces me to evaluate new-hires faster. No one needs 1 year to determine if a new hire was a good fit.