I'm looking for a bit of collective wisdom from some more experience Newton runners. I just got a pair of the Energy, and am really liking them. Great fit, nice flexibility with nice cushion. Here's the thing. I took them out for the first time for two runs this weekend - an easy 4 miles on Saturday, and 15 on Sunday. During the 4 mile run, they were great. Loved them. On the 15 miler, though, by about mile 12 or so, while my left foot was happy as a clam, my right foot felt like there was a roll of dimes under the forefoot, where the lugs are.
So, my question is, what gives? Is it a case of me doing too much Newton too soon, is it a possible issue with my gait and/or form (Lord knows there are issues there, but...), differences in my feet, or is it maybe something with the lugs on the right shoe? I would definitely chalk it up to too much, too soon, or something funky in my stride if it weren't only in one shoe. My left foot, as I say, was blissfully happy, and the right ended up a little unhappy.