I recently changed around everything in my hams cage, and they got rather confused too. They started weeing where they stored food which didn't make mummy too happy! I ended up changing it back. Mine do love to cuddle up behind their silent spinner anyways though. And mine also groom excessively... but they always have done
You should try keep it at least a week, if there's no change and he seems unhappy, move it back and see what he does