Don't worry, pjb0015, I don't think anyone is offended by your comments at all - there's just a bit of confusion about what the term 'Anglo-Catholic' means.
To an Anglican in England, a member (as Lewis was) of the Church of England, 'Anglo-Catholic' churchmanship is a movement nestling comfortably within the Anglican church, sometimes described as 'High Anglican'. It represents the traditionalists who remember that the Anglican church came out of Roman Catholicism and who prefer a more Catholic style of worship - what is sometimes described as 'smells and bells'.
I get the impression that by 'Anglo-Catholic' you are referring to something definitely outside the Anglican church, sort of poised between Anglican and Catholic but not exactly either. The main reason I don't think it likely that Lewis would be in this position is that there isn't really much between the High Anglican and Roman Catholic churches in England. Belonging to a church - to the church - was important to Lewis, and I don't think it would be quite his style to establish his own mid-way denomination, so I imagine he would choose one or the other. I think you're completely right when you say that his opinion on the Roman Catholic church probably wouldn't have changed, so that leaves him (probably) still an Anglican.
