I didn't read all 5 pages of this thread.
I don't have a elbow for the end of my hose. There is no place to store it on my 20 foot TT. I just stick the end of the hose into the dump port and then use a piece of firewood (that I had ready to grab in the back of my truck) to hold it down. Never had any problem and never had the house jump out.
But, I am not stretching the hose out to the max either. That was his biggest mistake.
I have taken to wearing gloves this year. Not because I think I'm going to catch a germ from my own poop. (Which I never touch anyway, after all it is inside the hose and the tank) But, I wear them now to keep from catching a virus from someone who touched the handle before me. They are not a bad idea. Although, after I am done dumping the last thing I do is go inside the TT and wash my hands before pulling away.
The whole dumping procedure for me is 5 minutes or less.