The aspheric Ahorton lens and spacer with a Vinh modified dedomed XML2 has a square hotspot about the same size as the hotspot from a dedomed XML2 in a smooth reflector tuned by Vinh. These are in P60 hosts, which are not designed to be throwers per se. Even with the dome off, I guess it is a pretty big LED. With the same brand/age of freshly charged batteries in both torches, the hotspot is brighter with the aspheric, but, as the cell voltage decreases, I can't tell hardly any difference. While it is interesting to see where the wires connect, and the grid of 'dots' on the LED, that can be seen coming from the aspheric, it is probably not enough of a difference with an XML2 LED. This is new to me and defer to those with more experience.