Stating higher ratio air-to-water would yield more constant pressure than rubber-based CPS, diaphragm, or simple spring systems is fine and I accept that point. The choice (CPS/elastic) is still more about using, well, an elastic material to pressurize water instead of air. Such systems are simpler to build and pressurize than air-pressure-systems like the Buzz Bee Toys AquaMaster PreCharger system by not requiring prepressurization of an air chamber. As well, the PreCharger system was already getting quite difficult to pump as is. If pressure were increased, few would be happy pumping as it would be either too tough or pump volume would need to be lowered by quite a bit. The other air-based constant pressure-type system I can think of would need some sort of compressed gas cartridge and a regulator to keep the firing chamber pressure constant. Making an air-pressure-based system perform like a CPS/elastic-type system is most definitely possible, but not as easily. Theoretical performance of an air-based system is even higher than that of a rubber-based system, but from a practical hand-pumpable standpoint, CPS/elastic systems retain the current advantage, IMO.
As for increasing output, that choice isn't meant to suggest increasing output at any cost. As has been noted before, a bucket of water can yield an output of 100x or even 1000x depending on how fast you can dump it, but its range would be minimal. However, if one has a choice between a soaker that can push a 5x stream 30' versus a 50x stream the same distance, methinks the latter would appeal to more members.
I, too, definitely prefer simplicity over complexity, though. Then again, this thread is about what would make *YOU* happy, so air-pressure-based-CPS desires are definitely fine,too, but those would fall under "Other" for these particular choices.
