Yep. I did 2 half-marathons last year (one more successful than the other one). I also use the Gallaway method. I'm planning on doing a half in April and I'd like to do another half in the fall along with a full in the fall. I do have a chance of changing my half in April to a full, if I feel like I'm up for it. But I'll wait and see how my training goes. I'm scheduled for 8 miles tomorrow morning.
