Could someone please clarify- are start rite shoes generally 1/2 size bigger than Clark's and next? So if my girl is a 12 in Clark's and next and I'm looking at a 12.5 in those, then I need a 12 in start-rite as that is. 12.5 in Clark's and Next? (I've seen some lovely shoes in their online sale for September). The lady in the shop looked at me like I was mad but I'm sure there's a 1/2 difference with this brand?