In reply to mattc:
Back in the early days we had a choice of Walsh PB's or........Walsh PB's. Hill runners wore them and got on with it as best they could, a friend of mine recently told me he used to go along to Walsh's and have trainers made to fit (he was wider or narrower or something), no big hassle at the company, but all Walsh's.
Then a few companies started to produce their equivalent fell shoes - which were pretty much copies of Walsh, then innov8 came along and everyone else jumped on the bandwagon and chaos reigns.
I can't advise, every time I need new trainers the models seem to have changed and I rarely end up with the same trainers twice, so I just wear whatever is cheap or "on offer". Reminds me, I have a pair of More Mile trainers to try, they were cheap and must give them a go soon.