I bought my New Balance W850 shoes a couple of years ago, hardly used them until this year and they have served me faithfully - no blisters or discomfort until very recently. I now have a black toenail on one foot, following a 9km run, and a blister on my big toe on the other foot following a club run. I can't find the same shoe in my size so I assume there is a new, upgraded model.
I tried ordering another New Balance shoe with high arch support from Sports Direct, tried them out last night and my left foot has been throbbing all day so I have to assume they don't suit me. I wore the old faithfuls tonight, they hurt my enblackened toe but were otherwise comfortable.
I've concluded that my best option is to go for gait analysis again, buy a recommended shoe from the shop, then google it and find the same shoe at a lower price, buy it and keep it for when I need a new pair. Or might this be a false economy because my gait might change as I (hopefully) progress ?