Well, this is what I ended up with and it will arrive today so I'm looking forward to using it and I will mention my thoughts on it here.
Pockets...I have thought that if I could find a way to harness my energy source (rear fired methane) store it and sell it I would be rich. My current throne that I'm replacing is a soft cover and it has been impregnated with years of my scented offerings...but it has not seemed to retain any residual odor.
I have not got up close and personal to see what is happening in the immediate sphere of seat operations, but at least in the drum area there is nothing offensive happening :-)
Question: Do the drum/throne developers test for scent retention? Is that design parameter? I wonder :-)