Thank you to all who answered. Fortunately, in Dallas, there are a lot of dive shops to check out all the equipment suggestions. After trying on 6 different models the best fit was the Aqualung Rogue. A size small worked great and the shop worked to fit a backplate that is comfortable. Being 5'9", all but 2 BC's were too short. While it doesn't roll up, it should lay flat and give us more room to pack. Heading to Grand Turks in a few weeks to give it a try. Maybe someday I'll get on the back wing, but for now, my Axiom works great. Thank you again for all the suggestions and hands-on comments. They were much appreciated and weighed in on her decision.