Probably against the general thinking here but I have 42t 1x and what I really don't like it's how when I'm cruising at speed the chain it's about the smallest cog instead of running comfortably in the middle of the cassette. More chain wear, more friction, not a good place to spend many miles.
On a 1x system you should have a different chainline. Your front chainring basically sits between the large and small ring on a 2x. So my 44-11 should cross chain less than your 42-11 on a 1x setup.
I too am looking at the Sun xcd cranks, like the fact you can get a 110/74 BCD spider for them, TA rings in black with the shiny cranks, lovely!
Bike's looking fantastic, the WW bag is rather nice too.
Probably against the general thinking here but I have 42t 1x and what I really don't like it's how when I'm cruising at speed the chain it's about the smallest cog instead of running comfortably in the middle of the cassette. More chain wear, more friction, not a good place to spend many miles.