Michael Broadwith went from Abington to the Bridge on his End to End. Which tends to suggest that it's the fastest way.
https://frrt.org/endtoend2018/map?center=54.63570,-3.93311&zoom=5.
I was filming that ride from Preston onwards on my own. So I had to choose significant and scenic places for good shots. Each set-up takes time and effort, so desire to film is a good indicator of 'scenic' value. I didn't bother following Michael from Beattock to the Bridge. I went on the A701, as it's a more interesting way to Edinburgh, and I wouldn't get lost. I got a good shot on the Forth bridge, but it wasn't much different from one on the Humber bridge.
https://www.youtube.com/watch?v=8LTFDLDE7o4The most commented on parts of the LEL are Teesdale/Yad Moss/Tynedale, The Granites to Langholm, and the Castle Howard complex. The Howardian Hills roller coaster gets a mixed response, but forms part of the Castle Howard section. I'd always take time to set up for those sections.
The sections further South are more generic. Location finding consists of looking for villages on Google Earth which might have colourful houses, possibly thatched, and working out when groups might appear.
Cambridge is an interesting case. I filmed there in the middle of the day in 2015 on a Hackney 200, and it was so crowded that it was difficult to get clean shots. On LEL I waited until about 8pm, and it was quiet. I could get interviews, and shots of riders passing Kings College, without fighting the crowds. I'd anticipate Edinburgh being much the same, with some possible good shots if I could be sure of anyone diverting. In 2009 I had a similar idea for Lincoln. The Cathedral and Castle were a 200 metre detour from the route. No interest was shown.
So I look at the filming options on the route as currently described. There will be some opportunities in Queensferry/Dalmeny, possibly on Bankhead Road, close to the Start/Finish of the Daylight 600.
https://www.google.co.uk/maps/@55.982843,-3.3737497,3a,75y,328.36h,71.89t/data=!3m6!1e1!3m4!1szbz_DkDL-VP83OE7al6QLw!2e0!7i13312!8i6656?hl=en&authuser=0I am a bit perplexed as to why they planted that row of trees though, they'll spoil a view of the rail bridge.
I'm a bit concerned that a Malton control might take Castle Howard out of the route.
I am moving away from film-making, riders do a lot of it themselves these days, and I've got a massive archive of Audax material. The changing nature of the field has been interesting, becoming more international, and younger. But the communication systems that have facilitated that are now mature, with all the challenges that maturity brings.