I also went with the 11 pound tank, twice. When they quit filling the old style valved tanks, I splurged for a new one, as it was the same price as putting a new valve in the old 'pancake' style tank that I had.
I chose the 11 pound tank because:
-Lighter than a 20 pounder
-Less space than a 20 pounder
-Lasts a lot longer than a pounder
Down side is that I usually get charged more per pound for propane, because most places have gone the 'exchange your empty gas grill tank for a full one' route, and 11 pounders are 'rare and unusual' where I am.....I can't think what they would charge to fill a 5 pounder. Honestly, it confuses them to figure by the pound rather than the straight charge they use for 'grill tanks'.
Plus, the extra initial expense of a 5 pounder (special order here), in addition to the added expense to fill it (in my location), just didn't pencil out.
My last deciding factor was that I fish just enough that a pounder wasn't near enough, but a 20 pounder was way too much to lug around. I think I would be disappointed at how many times I had to fill a 5 pounder and the hassle that went with it.....
To your original post as I just re-read it....I don't know where to get a 5 pound tank in your location.....
