Malkoff is definitely worth it. You'll likely get a tiny gap in between the bezel and body of the light when you screw the bezel back on. But Gene did mention years ago that the gap is supposed to be there.
FiveMega used to have some sweet LED drop-ins that left no gap. My custom modded SureFire 9P has one of those in it. But I don't believe he makes LED drop-ins anymore for older SureFire lights.
Many of the better LED drop-ins for SF lights have pretty much fallen off of the face of the planet. There just isn't that much demand for them nowadays.
FiveMega used to have some sweet LED drop-ins that left no gap. My custom modded SureFire 9P has one of those in it. But I don't believe he makes LED drop-ins anymore for older SureFire lights.
Many of the better LED drop-ins for SF lights have pretty much fallen off of the face of the planet. There just isn't that much demand for them nowadays.