A Bristolian
Direct BRS - SFB in 1997 are you sure!! I was working for the handling agent there at that time got some photos of the a/c doing that rotation.
I thought it was doing BRS - SNN - SFB there was about 4- 5 rotations that summer season if I remember rightly,spead over uneven times during the summer season.
Some did the above and some stopped at BGR pretty sure none direct.
Coming back used to be direct SFB - BRS if I remember rightly.
Anyway im sure a 757 operation would be viable and do well from BRS CO i think would be the favourite to supply this route.
Take care everybody