My daily-driver MFLB has had at least 5oz. of good green run through it,as well as a lot of kief and beyond a quick once over with the factory brush she has never been cleaned. I like the "well seasoned" but faint taste she has acquired. I've never tried any oils,bho,shatter or any of the high powered stuff you folks play with,but in the interest of experimental science I'll Vape all the concentrates anyone cares to send my way. Please?