Both flashlight are on high. Consider that i haven't two fresh 18650 so the XML is running on a half charged battery. I put the two beamshot here to show different beam of different emitter.
I think you will not be disappointed with 504 from DX
I repeat, this is my (limited) experience and my (humile) opinion. Maybe other member of the forum can have different opinion.
Here you can find another review of 504b with xml drop-in and here you can find the l2i review (with some different drop-in)