Cheers all - I have all three options lined up, all are 54cm and black - all will be shod with gumwalls and all black errything, all are made in USA...
The 9 is probably more durable than the 7. The 7 looks the best, IMO.
There were a few different types of 9 and 7, both can be had with full carbon forks and BB30 bottom brackets, and both can be had with alu / carbon forks and BSA shells.
Find the one with the best paintjob and don't worry about the rest