MMMM old socks. LOL. I haven't smelt that yet, I will have a closer look when I get home later at the sand you were talking of.
I started on 7.5 hours and went up too 8.5 about a week or so ago. So far so good, at this stage. I wasn't sure if I was giving enough hours with the amount of ferts that's why I went up the extra hour and the plants seemed to be growing rather fast so I thought they were getting close to being established.