It was in my plans to mod this flashlight even before I bought it! So I went ahead with the mofication I wanted to do! Nothing fancy, but gave some work!
I decided to turn my M1 into a triple.
What I used? A Led4Power driver (LD-A4 6 Amp); a Carclo 10507 (from Led4Power as well); a forward clicky switch (from Convoy Store at AliExpress); a solid piece of brass (cut from a rod); triple XPG2 S4 3C 5500K(from Jaxman store at AliExpress); some GITD tape; a piece of diffuser sheet (from Boaz, but not DC-Fix). I used the stock glass lens and stock SS bezel.
I had to:
a) cut a 0.8cm piece of brass from a bigger rod to use it as a pill; I opened a hole in the center of it, enough to pass the 20AWG wires from the driver;
b) file the driver’s edges to make it closer to 16mm, once the driver’s “place” was just 15mm
c) file the driver’s “place” in the flashlight head (below the emitter’s shelf), in order to accomodate the already filled driver
d) unsolder a reverse switch from the PBC board and solder the forward clicky switch on it!
e) used thermal paste to below and above the brass pill to better heat dissipation.
f) cut GITD tape to use in the interior of the head, to make it glow after using the flashlight!
I configured the driver to 4Amp, with Moonlight + 3 modes, with 2x clicks for Turbo! I am using an On The Road 16340 battery (as it is not an IMR cell, using the driver with 6Amp configuration would drain too much energy from the cell)!
Because of the artifacts produced by the Carclo 10507 optics (even if the Leds produce a real neutral white beam), I opted to put a small piece of diffuser to make the beam more homogeneous.
I was having some trouble with the press-fitting of the driver, as in some positions the light didin’t turn ON. So I guess the filing of the driver or of the driver’s hole may have removed some anodizing that leads to some kind of short or non-electrical conduction! But it is working better now! Sometimes
The only thing missing here, so far, is a sealing ring to make it waterproof! That is a thing to do!
Here are some photos 
The initial components and the components for modding

The brass pill (the diameter fits perfcetly on the shelf)

My soldering work is always messy, but it works 

The overal top aspect!

Comparison with the recently arrived Jetbeam RRT-01, from CRX 

And those two along with one of my favourite lights, a Convoy S2+ (Carclo 10508, same LEDs, MTN driver with guppy3drv) on the lowest modes (well, the RRT-01 can get lower
)

Some outdoor beamshots:

20m (trees) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>70m (tower)

Some conclusions: I like the way it is working despite the double click to turbo doesn’t work well or 100% times , but I guess that it is due to the forward switch; on max for a long time, the flashlight gets hot, but that is nornal and means that the heatsinking is doing fine (despite the pill doesn’t cover the whole MCPCB diameter).
And thats all folks :+1: