My exprience with Jason Yarn:
Feb 25 - Query
Feb 25 - Partial Request
March 23 - I get asked by another agent for an exclusive partial. So I status request Jason because he has first dibs.
March 24 - Jason R's (jumped me up in his pile to get back to me quickly), but really detailed with excellent feedback. And remember, this is an R, people - he has nothing to gain by doing this. I say "wow, thanks" and that's all she wrote.
But
I get to thinking about what Jason said, and re-edit my first fifty pages. Then the whole ms. It becomes 100% better. And after this, I get 2 more full requests and half a dozen partials (all still pending, zzzz). And I think "wow, none of this would be happening if I'd not done those edits".
May 6 - I write Jason, (ostensibly to say thanks) and offer my revised first 50 pages.
May 6 (about an hour later) - "Sure, send em along."
July 27 - Request for Full. Air guitar.
Jason is an incredibly nice, prompt and insightful guy. He made my ms better, and had absolutely no reason to do so. Even if the current Full gets a rejection, the barrel of my YA piece is already loaded an aimed squarely for his inbox.
In a world of form rejections or 'the deafening silence means I'm not interested, but I can't even be bothered sending you a form to let you know' this guy is 100% solid gold.
BTW Sales from PM: 3 this year, one in feb, 2 in july (sf/f, sports, pop cult)