Mstr Caution. I think that QF reckoned that the base only became viable if the S/O divisor of those based there was 180. AIPA said 'no' to that divisor. Given the way the patterns would have worked out, this meant that lines could only be constructed to less than 160... again an issue for QF. Therefore it just wouldn't 'fit'.
As I remember it anyway.
catthree, the reason your post keeps getting deleted is that there is probably a thread a week asking the same question. Tried a search on the D&G 'questions' forum?