Phizzy: I respect Rolf and his views" may I ask why ?
I corresponded with him for a short while and he seemed sincere in his beliefs (if somewhat deluded by sticking to the WT version of events). A true scholar/scientist would have looked at the situation objectively, and reject that which contradicts. As we know there's a lot of contradictions in Watchtower theology. He did admit though, that there were some serious shortcomings with the WT view of Hebrew aspect/tense. Another thing that put me off was that he insisted that I buy his books, and at that stage I could not afford them. I never got into chronological discussions with him because I view them as being of secondary importance. Overall, he held some liberal views, e.g., encouraging secular education.