i used to love Nike Pegs,' so comfortable, but started getting all sorts of niggles, so went to see top podiatrist, who said, get something with a stiffer mid section to stop you pronating, like an asics 2100.So went out and bought asics 2100, problems no better. So, i went to 'advance running' in peterborough, only to be told after about an hour trying different combinations on their treadmill (which scans the foot from the back while running, and slows it all down, so that you can see foot/ankle position at impact point,) with/without my orthotics, that a nuetral shoe with orthotics in, was giving the best landing/push off position. So, ended up with Brooks glycerin, and best it's been for a long time. He did say they have had problems with asics 2100's? and wouldn't recomend them.