Did you have the “Duals” installed... BOTH sets of bicycle pedals?
I used to live at 6200’ elevation, flying an old, tired Bell Jet Ranger out of the back yard. One monthly mission was to pick up a medical team at 7500’ and fly to a bush clinic at 10,500’ for the day. I’d have to wait until an hour before dark to take off coming home.
BTW, this was about 1 degree north of the Equator.
When I asked for a full runway takeoff due to DA the tower operator got all smarty and cleared “Cessna N***** cleared for a full rwy takeoff” - I had to circle off airport to get to 6k before attempting to clear the pass to the east on I90
I once sat in a full 757 on the end of the runway at Eagle (KEGE) on an unseasonably warm day, until it cooled down enough that the pilot was happy enough with things to take off. I want to say an hour or so we waited, but it has been a few years.
I don’t think most understood what was going on. I’m no pilot, but I am an engineer and understand gas turbine engines better than the average bear. I’ll admit to having some pucker factor on that takeoff, and I am far from a white-knuckle flyer.