OL swapped in an XPG2 in my 3 mode SK68 a couple/few months back. Wrote about it somewhere here on BLF.
Die image on wall is 3 - 4 times larger and zoom is about 50% larger than my 1-mode XPE. Similar draw, similar intensity - more light.
Using a 14500, it’s quite like having an XML zoomie in an SK68 package. At the same distance from the ceiling , the XPG2 is barely larger than the XML.
Up close, the XML may have a very slight edge in intensity, but across a large room the XPG2 takes it. At least as the batteries sit in them right now.
Update: Took my 3 FTT lights outside last night and my impressions are exactly the same both on a wall and out at about 150’. The XPG2 in the SK68 will be taken before my XML unless run time is a concern.
Current cell status indicates about 4 watts for the XPG2 and 6 watts for the XML. I don’t have a 14500 in my single mode 68, but the beam is quite a bit smaller so it still wouldn’t comparable even at 7 watts with a fresh cell.