Has anyone used Little Giant Xtreme or Quantum ladders? I can't find any videos of these newer models M26 being used in real life as an extension ladder. I'm sure it's great in any other configuration, but I wonder how strong it is when it's extended out 23 ft. I'd like to use it to clean my chimney. I currently have to get on top of the chimney and would prefer to stay on a ladder, I think. At least I'd like to try it. There are videos of the older models which seem to have a lot of slop in the hinge. The two I referenced have 4 pins on the hinges verses the two and three in the utube videos. It's $600 with tax.