Have not been around for a while. Where did you get the Nub? ThanksMy Mi 2 is not quite as responsive with a Nub as it is with an og rbt Mi 2 stem or my DDave cooling wand. I think it has to do with the rimmed screen that I have to use with the Nub. I can't easily sit a standard, rimless rbt screen into the nub. With ddave's wand and with og rbt stems, I can sit a regular rbt screen into the gong or into the stem and the results are suprerior as far as vapor production and consistency of performance. The nub takes a little more time on the button and a slower draw for similar results, I'd say. Fewer sessions per cell in the end maybe but the coolness and the low profile that the nub provides is worth it.