What are these objections?
Ursak
http://www.ursack.com/how-to-use/
Where does it say tie to a rock?
If you don't like the cord length, the cord is easily enough changed out for a longer cord.
My residence is 1-mile from Glacier National Park, Montana.
I do trail grooming in The Bob Marshall Wilderness.
Before I moved out to Montana, my mountainclimbing and backpacking was in Olympic National Park and the North Cascades before is was designated a park.
Ropeleader at 15 years old. 50 years experience.
Do you work for one of the bear canister mfg?