On further refelection I can see where you might be exposing or indeed weakening Roger's case here replying to this and I'm by no means familiar with your craft but if you feel uneasy about answering this no worries. Forget I even asked the question I tend to plunk down my mind and pound on the enter key sometimes more quickly perhaps than I ought too.
If you feel uncomfortable replying to the question I completely understand so pretend it never happened.