If you are comparing high CRI to incand, theoretically incand wins by providing a CRI of 100 but that is in theory. In the actual practical part, I find that not all incand gives you nice natural colors. I have been comparing all my incands to the high CRI for the pass one month and I realized that some incand burns whiter than others, even for the same model. Here are some examples based on all the Surefires I have,
1. P60 (3 units) - one seem to burn whiter than the other two but all three still looks a little orangey compared to high CRI. High CRI wins in brightness, color rendition, and efficiency.
2. P61 (2 units) - both burns whiter than any of my incands and produces very nice and natural colors and if I have to give an opinion I'd say they look better than the high CRI. The drawback is that they burn up two batteries in max 20 mins. High CRI wins only in efficiency.
3. MN10 & MN11- for SF M3. Both looks orangey but still produces very faithful colors, especially the MN11. Better than high CRI in my opinion. It's hard to pick a winner here. High CRI wins in efficiency definitely. Even though the incands here looks orangey but there's something about the MN10 & MN11's power output that seems to offset the orangey cast.
4. MN16 - for use with KT4 turbo head on my M3. Surprisingly orangey. More orangey than MN11 which is also rated at 225 lumens. Prefer high CRI if comparing colors but this light gives out raw power and throw.
In my opinion, color wise I find the incand sandwiched between the XP-G warm white (example will be those offered by 4sevens on the limited run) and the SSC high CRI, the high CRI being the coolest of all. Which is better is hard to quantify. Like the saying goes, one man's food is another man's poison. YMMV. Much as I like incand for it's faithful colors I also recognize that we are in a transition period whereby LEDs are getting better and better, in tint, efficiency, as well as power. I say ditch the incand and go high CRI. You wouldn't miss anything.