Squeek,
Here is the route we are thinking over right now. Couple things to remember though with my situation:
#1. This is the last summer riding season for me because unfortunately I am due to leave the UK next year.
#2. My goal before leaving here is to essentially cover the British Empire on Bonnie. Eventually I will end up back in the states and Bonnie will be with me; I plan to one day pass this bike on to my son but before then, I want to collect as many countries on her that I can.
#3. This will be my only chance to ride up into Scotland that I will have so I want to ride as much as Scotland as I can. I know this means that a lot of the routes will have to be on the highways but I just don't see any getting around that. I tried to squeeze one more day out of work but I can't. If we were able to have four days instead of three then we would of ran up to Thurso just to say that I was at the top but unfortunately that isn't going to happen.
With that said, here is the route:
Day 1, Thursday right after work:
Ride up to Carlisle using the A1 almost all of the way. Finish the five hour ride and stay the night.
Day 2, Friday:
Leave Carlisle and got to Lochness using M74 and A9 that should take 5 hours. Take a little bit of time to ride around the loch, souvenirs and Urquhart Castle.
Leave Lochness and head to Stonehaven using the A939 almost all of the way. Ride time about 3 hours. Stay the night at Stonehaven.
Day 3, Saturday:
Leave Stonehaven and go to Sunderland by using the highway that runs along the coast above and below Edinburgh. Ride time about six hours and stay the night in Sunderland.
Day 4, Sunday:
Sunderland to home using the A1 until the A14 and hit country roads at Cambridge. Ride time about 5 hours. Get home, collapse into bed and try to go to work the next day
That about sums up the route. Unfortunately a good percentage of it will be on the highway but we just do not have much choice in that matter. My buddy and I definitely want to get to Lochness and we also want to hit some country roads through the highlands to get back to the eastern coast. That is the best that I could map this out so that we could achieve what we wanted to and squeeze all of this in on a three day weekend. If I had more time then I definitely would plan it a lot differently but at least I am getting to make this run. Any advice you could share or if you think I am a little out of sync with this plan then please let me know. Like I said, I'm just a Yank on a Triumph and have never even been to Scotland

I can't wait to make this run though, it will be something I will be talking about for a long, long time...