I'm seriously starting to think that gunpowder tea only makes sense with sugar: 2' in less-than-boiling water yields a nice smoky brew, that I can only appreciate sweetened.
Previous experiments with shorter infusions, rinseing, cooler water, and no sugar, never produced anything I'd like to drink. Then again, I'm not really used to unsweetened tea, or even green tea itself. Although I kind of like unsweetened jasmin tea.