LM30X from Lumapower are great hosts for SSC-P4 LEDs.
The pill unscrews easily and the emitter is easy to mount, using 0,7mm copper disc and AA epoxy.
The beam is very smooth like now other, with a large hotspot, smooth transition into corona and hotspot.
I modded five of them and love each.
I won't take beamshots, cause they look all the same...
ok, here comes a beamshot anyway, but it doesn't show how smooth it looks to my eyes...