I am currently flip-flop thru-hiking the PCT and taking a nero in Packwood, WA. I have recently switched out my New Balance MT110's (not as durable as I thought and need more underfoot protection) for some Altra Lone Peaks. I have them sized up (size 14), but I had so much room that I am currently double socking it and still have plenty of room even after consecutive days at 25 miles. I was thinking of going back to my original size 13. Has anyone else had similar experience with these shoes? Did you end up sizing up or not?