um. I guess that makes me silly. 
If you're going to judge by eye, if you're going to judge by feel then feeling happy is the indicator of accuracy.
when it comes to artwork it's knowing that moment when it's holding it's own - spent but feeling satisfied, it doesn't matter it's not perfect, you're happy and it's time to put down tools.
So there is this nugget of truth in the promise that makes it easy, well almost sensible to swallow but then it is taken in a false direction that you have to be happy all the time - feeling unhappy matters too.
