11 weeks! I thought my pre-app was taking forever, mine has been in for four weeks, I called up last week and was told that the planning officer has completed her report but is waiting to be signed off by her manager which should be done in 2-3 weeks... she wouldn't say what her report contains until it's been reviewed. There must be a big backlog if it takes 3 weeks to read a report.
Also, I'm most disappointed that they won't actually talk to you face to face about your proposals in my borough, they hide behind reports so it's almost impossible to debate anything until it's too late.
I am also in the position where I am starting to wonder if it would be best to just submit an application, although as the site is a bit touch and go on policy, I don't want to waste significant sums of money for detailed plans as I don't have money to waste. Therefore I am considering an outline application.
Best of luck.