I managed 9 hours for the midlands forests 200 yesterday, out the front and on my own for most of it. 3 stops well 4 if you include the official check which was packed and stickers etc nowhere to be found, so pretty happy with that.
I agree with the comments about the wind, it was pretty horrid out there on the way back yesterday.
I am going to look at either finding premier inn or similar in Lincoln or pressing on and sleeping in a location I know in sleaford, however the breakfast options in sleaford might be limited.