Just to update, got back yesterday, rode out of jasper over the weekend although not the disaster route. What an epic ride. Two brutal climbs, first one two miles of mostly 10-11% with a few kicks up to 18 just for good measure. Then 30 miles more or less of rollers on the ridge top, a screaming descent, then the second climb up and over mt sherman, not as steep as first, mostly 8-9% but longer. Great ride, highly highly recommend it.