I know it may be naive of me, but thank you anna louise. I got a form reject from an agent this weekend and I've been rather depressed since. But reading this post just reminded me why I wanted to tough it out and find an agent anyway so that I didn't have to be the one stressing over the numbers and business side. I understand that I need to know these things, to understand how it all works, but I am 100% OK with handing my 15% over so that I can focus on the writing part.