Yep, my running shoes have always been a half size larger than my normal shoes but once my long runs got to over 10 miles I started having problems with blisters on front of my toes and bruised nails so I've gone up yet another half size with my running shoes.
On another note, I'm hoping to get some insight. I'm training for the Detroit half on October 21 and I've done 2 10-mile runs so far. I'm planning on building up to 14 miles for my longest run which will be 2 weeks before the race. Whenever I've told anyone my plans so far they think I'm crazy

I have friends and co-workers who are also running the race as well as my chiropractor who all say they've never heard of a half marathon training plan that goes over 10 miles for a long run and most people only do that distance once or twice. They think I'm asking for an injury. I've had some minor aches and pains but nothing out of the ordinary that I can't run through and they usually go away before the end of the run or at least by my next run.
This will be my 2nd half marathon, my first was the Wine and Dine last year and my longest long run before that one was 12 miles as per Hal Higdon's Novice 2 training plan. This year I'm kind of doing a split between his Novice 2 and Intermediate plans by adding in some more speed work than I did last year. I want my long run to be longer than the race distance because for the Wine and Dine last year I was feeling tired and sore near the end of the race and my pace was very disappointing for me. A lot of that may have been due to the fact that I never did a long training run late at night. My long runs were in the morning and my mid-week runs were done after work, so around 5pm. This schedule should work out well for the Detroit half that starts early in the morning.
So I'll have a 12 mile long run this Saturday, next weekend I'm planning on 8 miles, and then in 2 weeks I'll have the final long run of 14 miles. My weekly mileage has been between 23 and 25 on average for the last month and a half with a couple of cut back weeks here and there. So far I've felt really good during and after the 10 mile runs I've run.
Anyway, sorry for such a long explanation

Am I crazy to be running my long runs so far?