I was playing as an Assassin and was juiced. So I attacked it with every swing while the other team was playing patty cake. Juice ran out and I kept attacking it. About 5 seconds later I had full juice again, and I destroyed it. TL;DR Money ball gives too much juice.
5 seconds sounds a little exaggerated. Never happens to me. I actually don't bother till overtime, cause i like playing full games. Besides, when i have ANY shot on the money ball, 1. i wait till overtime 2. pump jackbots with bullets 3. receive juice. 4. ??? 5. Profit.
I've seen it happen before. But I do think it was in overtime. It was almost immediately after the juice ran out that the assassin got it again. It was rather annoying. Do you get juice back while you are already juiced?
Must just be the fact that the Assassin can attack so fast and you get so much juice from attacking in overtime. Either way, what the OP says is true. At least in overtime.