You tinker and tinker and tinker until... what? Until its perfect?
Sometimes you just gotta pull the trigger and do it.
Don't wait until its perfect (because it never will be).
Give it your best shot, throw it out there, and see what happens.
If you get feedback that it stinks, fix it. If its celebrated, hooray!
But it will never be perfect.
Perfect is overrated.
As Tina Fey says, "Perfect is boring on live tv."