Finally heard back from Saucony and they said:
We are sorry to hear you are disappointed with your latest pair of Saucony’s, we have not heard of any problems with the Peregrine.
If you are concerned your first point of call is to return your Saucony’s to the shop from where they were purchased so they can assess the shoes in store and if necessary contact us.
Suppose that's standard really, but since they're their product you expect a bit more help. Certainly wasn't told to go back to the shop by Mountain Equipment when I had a problem with my tent.
I was going to get some road shoes by Saucony as well...
Will maybe look at the Trail Rocs for my next trail shoes as they sound very good.