Unless the quantity I have is very limited, when working with a new tea, I play it by ear, and use infusion leaf-to-water ratios, temperatures, and times consistent with what I use for other teas in that category. Except when I am unhappy with the results, or hesitant about an entire category of teas, I rarely follow precise brewing instructions. I tend to brew more dilute and cooler than most recommendations anyway.
Most of my vendors use grams of tea in suggesting proportions, BTW, which is more accurate for most of us, and takes into account the widely varying densities of various teas:
each of these is 1 gram of the indicated tea, easier to see in the original larger version herehttp://www.flickr.com/photos/debuni2479/sizes/o/