I suppose I will ask a few 'simple' questions to try to work this out.
I know it is a bit unconventional but this is an unconventional situation I suppose. Really what I want to do is 'start again' as far as linking is concerned with minimal direct impact to my visitors.
If I were to implement a 302 redirect from www to non-www would this block off 'link juice' flow (good and bad) whilst allowing the non-www to accumulate and build up authority of its own? Would rankings depend on the new non-www authority that is building up rather than the previous 'www' authority?