I think ths chat is starting to stray somewhat from the original posting so in order to conclude the matter of setts & cobbles I would say the following.
My paternal Grandmother and most of my Great Aunts & Uncles lived most if not all their lives in Beswick whilst my father and his two siblings grew up there. Despite this, (to the best of my memory), I never heard any of them use the word setts to describe the local road surface.
None of us can know (and I doubt there are complete records to show, even if anyone wants to go digging in the archives) what type of stone was originally laid on all the streets in the area. Over more than century, alterations to the road layout; repairs by various teams from the Council or utilities; bomb damage; RTA's; vandalism; Town Hall budget restrictions; mining subsidence etc., will no doubt have resulted in a 'patchwork' of stones used across the road network. The massive redevelopement of the area in the late 60s and then again since 2000, will have destroyed/erased much of the patchwork whilst complicating what little still remains.
Accordingly, there is nothing to say that any or all of us are right or wrong in our memories.