Hi there, just found your forum while looking up information on center extension A frame ladders, a very useful tool from when I "hung around" theaters in the Bay Area some 10-25 years ago. I am designing a show in NW Arkansas and spent the better part of 3 days trying to hang lights on three raceways using a hydrolic lift - SOOOOOO Slow. Wishing I had a good old fashioned ladder that could get me 25 ft up without requiring an army to move to a new position.