You get 6 sanyos(15.600mah) for the price of 4 panasonics(12400mah) 
Hehe, nice insight if mAh’s was the only decision criterium
As I understand, the discharge curve of the Sanyo’s is more flat. I consider this as an advantage for the SRK. Am I right?
You’ll get more high-brightness time with the Sanyo’s, but less overall run time. Personally, I always use fresh batteries when using it to show off anyways, so prefer to simply have a higher capacity on the batteries. I keep it on low mode hours at a time, so the more time between battery swaps, the better. It’s all user preference!
Odd my Sanyo’s have more resistance than my 3400mAh panasonics. Leading to lower brightness with the Sanyo’s and less runtime.
As said above if you are showing it off you are prob using full batteries= no diff. On a long usage you arent needing the extra time of absolute of max output probably, you want more run time. Depending on how its driven, it may be 6 hungry LEDs @1.6A (guess), so I guess ask yourself if it has 65min vs 85min of battery, how long are you going to walk, and if longer than 60 min, are going to want to carry and change out 4 batteries in the dark. Remember its unpredictable though because we dont know what the LEDs are driven at, or if it is less efficient, it could be a more significant difference if they are driven better, could be 40 mins or less with the 2600mAh’s.
Unknown00101 wrote:
I am so tempted. I want to get one to sell to a coworker, but I have a feeling I would just end up keeping it… Like always.
I hear you brother.
Mine’s on the way, and have sent me the message.
Dx has behaved again.
So tempting even as 6x XML, I’m finding “reasons” to buy more myself…gifts for family and mobile lamps right? But then the reality of “they need batteries, charger and education” creeps in, and I guess I’ll have to keep them all myself… 
ugh… weird, DX won’t let me pay with paypal
Had the same problem, don’t click on pay with paypal, click on the other one and them select paypal on the next page, worked for me.
I always get this message ” 0x80042021 : A match of the Shipping Address City, State, and Postal Code failed ”
when I tried to pay with paypal :Sp
I think it may happen later (someone check my logic). With 6 emitters, each is likely driven at lower current than typical 3 emitter versions. At lower current Vf is lower, allowing the cells to be discharged lower.
Sold out!!
never underestimate the power of BLF 
maybe it was a pricing mistake? like when they had ultrafire m5 for $1.30, after a while they changed to “sold out”, instead of adjusting the price.
(DX themselves said something about it being an activity for loyal customers to hunt down bargains IIRC)
They did put up a post for this light on facebook yesterday with the same price. So I don’t think it was a mistake.
Thanks for the answers, and I may conclude there’s not a real winner. I arbitrarily decided to go for the Panny 3100, $35 for 3 pair @DX.
Wow, I’m a little surprised DX would actually tell people it’s out of stock.
more like they realized their pricing mistake and decided to pull it out 
Probably is a “mistake”, though they also probably still dont lose money on it at that price. From what I’ve heard about a year ago, they could sell SRKs for $20 and be OK, so +$5 for 3 old XMLs (maybe T4s or T5s), its still within that range.