Encouraging results Molten. When I tested the MID I never went out to the extremes of the loft sleeve; only going up/down one notch from stated in both standard lie and upright. I usually notice a little performance drop off (ball speed/consistency) when I go out to the extremes on any OEM adjustable loft sleeve so I typically don't go there. That fear might be all be in my head though. Did the performance hold up well for you at 16.5 and 19.5?