SDW will be well organised and the aid stations well stocked. Except in truly foul weather conditions (2013!) the course should be easy to follow and much of it should be runnable (SDW undulations are less steep than NDW50 and lots less steep than Lakeland 50). Mostly wide bridleways/footpaths.
No knowledge of Glasgow Edinburgh.
Meanwhile, I am going to be sensible and NOT book for any ultras for next year at this stage. My longest run so far has been a mere nine miles, so I have a way to go in building back to decent distances. At least I -am- running. Was in Edinburgh for a conference over last week so I got some good hill work in going up and down Arthur's Seat most mornings, and the ankle was fine with that. Onward!
Fairyclogs: sympathies. At least they showed up on x-ray, so you know what you're dealing with. Also, that should be 6-8 weeks off, you should be able to keep up most of your fitness by swimming, and once thee bones have mended then they are mended, generally, (unlike tendons which require lots of rehab physio etc.) so it could be a lot worse.
I highly recommend volunteering at your local parkrun and/or local races while you can't run. Much more positive than sitting at home moping!
carterusm: guilty as charged! Note: last year at Ladybower the water containers at the checkpoint were SLOW to run water - it would be faster to have spare bottles ready-filled in your car and just grab them, or even to have a large bottle and fill smaller ones from that, at your car. (I really envied the lady I ran with on the second long lap - her husband came and met her, on a bike, about a mile from the checkpoint, she gave him instructions, and all she had to do when she got there was hand him her empty bottles and take full ones and food from him, and off she went! I lost 5-10 minutes getting myself sorted before heading out for the last lap. Oh well).
Kendal Mint Cake isn't available in supermarkets, mostly. It's widely available in the Lake District! Otherwise, it's available at Lakeland stores - the ones that sell kitchen stuff etc. And some online stores - I see Blacks has it, for example, and they seem to be offering collect-from-store.
The ankle (left!) is improving. I ran nine miles last Sunday (not the one just gone). This Sunday I was going to aim for 10 - then on Friday, just walking around at home, I caught my left big toe in my right trouser leg and strained it! Ran at my parkrun on Saturday, which was probably a mistake, but we had enough volunteers and I'll be Run Director the next two weeks with no chance of running, so... Anyway, it ached enough afterwards that I realised it needs a few days of rest. Frustrating. Still hoping I might be able to run an autumn HM - if I can find one in the area. Can't go for Barns Green at the end of September because I'm Race Director for my club's 5-mile XC race, the Switchback 5, on the same day! I'd love to aim for the Jog Shop Jog 20 in October but I'm not sure I can increase to that distance by then, which is a shame. Got to think long term with this tendon injury, give it and all the other soft tissues a chance to repair, regenerate and adapt to compensate for the damage.