BEAUTIFUL!
Can the board be white instead of blue so it wont affect the tint and white is more reflective to maximize lumens?
@vinh, yes, I agree with SKV89.
Going with a white matte MCPCB would actually increase your brightness a bit.
Also, would you be willing to go with LH351Ds?
You’d get even more lumens.
I will consider white background with blue logo but not for increased output as suggested. You can have any LED you want. XPL shown is for demo only. 
How much more bright?
Does something that does not emit light increase lumens? Can lumens/brightness be increased other than by using a light emitting source?
Not even a reflector increases brightness and that is not behind the emitting angle of an LED.
I like the dark blue pcb a lot with yellow leds on top. A white one will not matter a lot in output (1% for a mule?) but will considerably alter the looks of the flashlight.
1% more light.
So if the mule does 10.000lm, by having 2 square milliliter of white surface behind the LED the mule now will do 10.100lm.
That was the secret to increasing lumens.
No reflector or optic of any angle increase brightness of any LED, they all reduce brightness/lumens , but a white tiny surface behind the LED will actually do the opposite by 1%.
Getting there!!
The bead blast gave an even matte look and should give an excellent surface for the HAIII bonding. 
Really can’t wait!
Usually I find black flashlights kinda boring, but that matte black looks so good.
More build pics
Look at that yummy solid chunk of 7075
We dont need pictures but do need videos of this machine at work. Pretty please. 
If I could get videos I would make them myself but these pics are provided courtesy of the shop. So yeah…Slim chance. But I will ask anyways.
That is a work of Art! :+1:
LilVortex Copper Shell has arrived!
~3oz weight
30% heavier than normal Quad/Triple copper shell
3 times the weight of a reflector P60vn with copper fill HS!
That’s NIIIICCCCEEEE—- with the right Cell you can pull some serious amperage
Anything that is not perfectly reflective absorbs light and lowers OTF lumens. Improper focus/centering can definitely LOWER OTF vs LED lumens however.
Just look at what swapping the optic in some Armytek lights accomplishes: Armytek Prime C2 Pro v3 Warm review (XHP35 HD, 18650) - #8 by clemence
Batch 1 has arrived! LOVE the Serious Tough Matte Look!
Acebeam T27 Empty Host = 3.4oz
SLN Emtpty Host = 6.3oz (~Twice the weight T27, Kind of expected?)
LilVortex = 3oz (If anyone have ever handled a 1oz gold/silver coin before imagine 3 of it! It’s almost the weight of an empty T27 shell and 1/2 the weight of a empty SLN!)