Hiya.
I got 6 PE M+M seats for our forthcoming October trip 4 hours after they were released. We also fly out of Manchester. It cost me 45000 plus £4600.00which I was happy to pay
Yes, I literally set my alarm for 4am on our 11month out window.
At the time I was unable to allocate our seats due to the new seating plans not yet been released, I therefore logged on possibly 14 hours later to see if the seats were yet available to allocate and there was no M+M seats left
1 week later the cost of economy was more than my PE seat.
My conclusion was that if you definately want to spend your miles, anywhere near school holidays (like us), or on any specific dates, get up early and book when your 11 month window opens.
I hoped for a "deal" to happen for us last year flighing out of MAN using our miles, I waited and waited but nothing came to light, if anything the prices increased on what seemed like a daily basis. We ended up cancelling our trip which is why I was so paranoid about making sure I did not miss my M+M seats for this year.
Good luck
Annette x