Well we did it.  We hiked the combined Panorama and Rollercoaster trails, and totally enjoyed it.  We extended the hike a little in the middle with an extra loop and RR track return to Panorama to view the oak tree orchard.  We covered 4.1 miles in 3:27.  Total Ascent was 1164 feet with a final HHI score of 34.69 which places the hike solidly in the Middle Hardness category.   The weather and conversation were great.