Double Your platform of around 200 miles a month and the mix of easy days with 2 hard days is very simular to my last cycle for my half. I rarely run with others as I run my easy days so much slower than they do. I can't understand how women with simular PRs to my own crank out 7:30s every single easy run when I can only handle 9s. Even many area running friends run their long runs as fast if not faster than I do even though I am about 20 minutes faster for a half marathon. But I very rarely have a hard workout fail and I think it is due to running my easy days so slow.
My main reluctance to commit to a marathon yet is that my biggest running weakness is my endurance and that is something that I am very patiently building. I think it will still be a year or 2 til it is marathon ready. When I was being coached by Ryan and averaging in the mid 60s per week running magic was happening. I just have to be patient. The other thing I worry about is that I will not enjoy running a marathon or the 20 mile training runs. Sometimes I enjoy my 15 mile runs and other times I hate them. I am hoping that as my endurance grows I will enjoy them more.
Ryan, I hope you will run the Syttende Mai 10 next year with me. I think you would love the rolling hills.