if you have grade A bud, then the resin actually helps in achieving getting higher due to the unburnt THC that simply melted into the resin in the bowl and actually tastes just as good if not better than smoking from a clean piece. Shitty weed is another story, always clean that shit out because the resin tastes like shit and can even give you a headache... I get headaches from shitty resin.
Edit: Remember kiddies, a good pothead is the kind that doesn't turn any kind of smoke down unless you already have the good stuff