Frames always ship with plastic tubes sticking out the cable ports, but they are not use to route naked cables.  The are used to help fish cables and housing through the frame.  You shove a cable through the guide until it sticks out both sides.  Then you remove the disposable tubes and feed the permanent housing through the frame by engulfing the cable as it goes.

Yes, Wing shared it with me, along with some other helpful info I requested:

I was interested in seeing how well they preserved some of the original geometry with the 120mm option.  They claim the same HTA and STA, and a 35mm BB sounds low for an XC bike, but still reasonable.  However, the fork axle to crown is 520, which is more like a 110mm fork.  Put a 120mm (or even 130mm) fork on there and the BB drop is going to be even less.  The FM1001 BB drop is only 28mm, which is low for even a trail bike, but I have not seen any complaints yet.

Are official geo measurements for the 936 available with the 120mm rear?

From drawings 909 has bit more clearance than 936. When I get my 909s I can check it thoroughly.

Did you receive your 909 yet?

Wing at Carbonda sent me these dimensions for FM936 and FM909 frames.  They list some dimensions around the tire area for both seatstays and chainstays, but most of the widths are missing, and it is unclear what the clearance is expected to be above the tread.  Wing said the standard is to allow for 6mm of clearance to the tire, which is where their max widths come from.

2.35" = 59.69mm
2.40" = 60.96mm
Diff  =  1.27mm

Has anyone used offset bushings with Carbonda 936 or 909 frames?  I just became aware of their existence, and the point seems to be to shift the shock in one direction in order to change the head angle and BB height. 
https://www.offsetbushings.com/pages/how-they-work

If the seat stays are pushed back, then you may have that many more mm of travel available before the bridge connecting the stays contacts the seat tube.  This could be one way to safely get >100mm travel out of either frame, but it would involve raising the BB and steepening the head tube.  This is the opposite affect that most users will want when using offset bushings in general.

Thanks for the tip.  I see that Lexon has a bunch of hardtails that will do 40t.

Trifox SDY20 will also do 40t but is more expensive.

Light-carbon LCM904, though it mentions 36t max, I'm riding it in the winter on the road with a 42t oval ring on an old XTR (non-boost) crank, so it can probably handle 44t round.

Did you have to cheat somehow to make that work? e.g. Install it as 1x where the outer ring should be on a double?