Re: Very harsh smoke
Using a wind cover traps and, in a sense, amplifies the heat. It could be that between the size of your bowl and the size of the coal and the windcover, it's simply way too much heat.
I would browse the video how-tos and be sure that you're packing your bowl properly, then try smoking with your coal set off to the side and use no wind cover. See if that improves things and then adjust as necessary.
This is my: