"The other thing that is objectionable is that the pot is hard to remove until it cools a bit. That takes little time but it is a delay nonetheless. Perhaps with usage this issue will rectify itself."

just set the pot on the stove in the "dimples" - don't give it a half turn to lock it in place - what for you want to lock it - think somebody gonna steal it!  I never lock the pot to the stove - no reason to unless you have the hanging pot setup where you suspend the stove as a unit from some chains. 

option 2:  buy the pot support that fits atop the stove (comes in a "kit" with the stabilizer thing) and you can use any pot or pan - a wider, shallower pot is easier to simmer with than the jetboil mug, and you can use a non-stick coated pot - not as fuel efficient as the jetboil pot with heat exchanger, but not too bad either.  about the same as using a pocket rocket. it will be less stable if you use a larger pot, just keep in mind you need to be more careful with a larger pot, and keep it centered.

look up "Hikin Jim's" blog - this guy is like a stove guru, doing stuff like baking with esbit.  he has lots of tips on using jetboil for cooking as opposed to just boiling water with it.

all cannister stoves have that "hot spot" due to the small burner heads.  look up "diffuser plate" - a little gizmo to spread out the flame - not sure if you could rig one for a jetboil.