Hi Graham
I came in 4:38:37 (my watch agrees with the results). I passed Wendy Dodds just after Dalehead tarn, which would make her official finish time about right I think.
I made up a few places on the subsequent descent, but don't recall seeing or passing an Ilkley vest (if that's what you were wearing) on this stretch. How can I be so sure you might ask? ... because I took a few photos around the course! I've put a link to the photos on the NFR website, but here's the direct link:
http://www.flickr.com/photos/8011535...7606522724792/
As for your time, sorry, I can't be of any more help ...