This is a short little article, but I think rather on point...I know a number of writers who seem to spend so much time trying to make a piece "perfect" they never actually submit to publishers, or anywhere else for that matter...from Writers Get Together blog...
Perfectionism Is Highly Over-Rated!
http://www.writersgettogether.blogspot.com/2012/05/perfectionism-is-highly-over-rated.html[/size]