Marathon training is going well and I am extremely happy with my decision to do this. In fact, I am somewhat disappointed that I haven't done more structured workouts the past four years and have allowed myself to be too specific in the trail and ultra world. I love that world, but you can have too much of a good thing. Anyhow, there is an argument to be made that I this is the hardest I've trained for any marathon -- extremely focused and disciplined workouts day after day. Previous marathons plans more informal, jumping around between ultra plans, Pftiz plans, and Hudson plans. Recent workouts have given me confidence that a 3:12 is possible. However, my acceptance into Wasatch means this is a one shot deal, at least for 2016.
I am eagerly awaiting Spring and dry dirt to get back out on the trails. This year, I hope to do it much fitter and keep an edge of "quality" to my training, which likely includes taking a step backwards in volume (both miles and vertical gain).