Low temps take too long, I need to get higher now. I have a dry bong attached to my vape with a hose and I set the temp to 218C so I can take big rips. My vape (Herbalizer) goes higher but I think higher toasts the weed too much and impairs the flavor.
On the portable (Crafty) I use a lower temp, 190C, because I think it actually gets the weed hotter than the temp you set it.