"Low" is closer to the balloon body, while "high" is closer to the opening. Of course, too high and too low are bad...watch the Mike vs Douchenator video for the results of two balloons that were tied too high up the neck lol.I'm a little confused by "high" vs. "low" on the neck. Is the balloon oriented with the hole on top or on the bottom? In other words, is "high" closer to the opening or farther from it?
It's not just the effect of a balloon coming out of the blue, but also the effect of something happening that couldn't possibly happen. When I go minimalist, all you see is a soaker. I would announce that I have a copy of the rules and a whistle in my pocket, but the enemy never noticed unfilled water balloons in there too...they take up virtually no space. So they're puzzled about how a water balloon came flying at them...when there was no backpack, no can, no pocket bulge, no cache, and nothing else in my hands other than the gun. The balloon just appears! [granted that you do remain invisible while filling it and do it quickly]. The enemy may catch on after a few, but chances are they do not have the capability to field-fill...who brings empty water balloons to a war without hoses anyway? The ability then affects their formations, offenses, and defenses - they'll probably be uncharacteristically cautious and will think twice before rushing. This is a form of intimidation that can hit a veteran with the same force as a novice, especially if your whole team has the capability and enjoys trick tactics.Onfield filling hasn't worked for me yet, partly because of the time it takes to fill; instead, I usually fill between rounds and put them in a pringles can, but that won't have the psychological effect of a WB coming out of nowhere.
As for onboard water balloons, you would run into the problem of durability. They would be likely to pop even if well-secured, especially in a game involving a lot of running and dodging. You also lose that element of instant surprise, for the enemy could see the water balloon attachment.