When drinking for pleasure and not analyzing the tea I find alot of newer sheng benefits from lower temps.
The more tea I drink the less use the guidelines become. In the past few days I've had new sheng with water 10mins off the boil, albeit in a partially thermal kettle, and green with boiling water.
Play around, it's fun.
I like having no idea how to brew a tea after cutting through 100g of it and enjoying it all the way.