Yes, that is my impression as well. Haven't figured out how to do 500+ meter beamshots yet, but this is what you would see (as long as the distance was great enough to cancel out the corona effects).K50vn seems to have an edge at "close" (less than a few hundred meters) because the corona supports the hotspot and enables more to be seen. But at extreme distance the stronger, fatter hotspot of the TK61vn would be superior because the corona no longer is bright enough to factor in.
Of course, I'm not sure how many of us need to see that far ... at close distances, both models puts a lot of light on target. The TK61vn is more of a defined spotbeam though.