Just a footnote for anyone who may not have read the article the quotes were from. The points mentioned 1, 2, and 3
1/ The poles on the market are time consuming to use.
2/ The poles on the market are no use at going from second storey window to ground floor windows.
3/ The poles on the market because of there long closed length are harder to carry around, and transport in your vehicle.
Points 2 and 3 can easily be sorted with smaller, and more sections, which means more clamps, or more sections to push together, and in turn makes point 1 even more time consuming.
Peter