It turns out satin is still eluding me.

What I think I need is a bigger difference in warp and weft yarns. But I do not have that much of this yellow silk that I could produce any meaningful amount of fabric in the end.

I could absolutely warp up twice the amount of ends and cram them into heddles and go with the "single" strand for my weft - but I suspect that a bigger weft would be better, giving the shine along the grain rather than cross-grain.

Or do I just need to pack it even tighter? I have woven about 10 cm of 36 ends per cm (3 ends per dent in my new 120/10 reed) and about 15 cm with 25 epc (5 ends per dent in a 50/10 reed).

Maybe I should try 5 ends per dent in the 60 and 80 reeds for 30 and 40 epc respectively? But the 36 epc is already pretty sturdy - more canvas like than anything slinky.

In an attempt to see how the 25 epc did with a thicker weft I made up a bobbin of carpet warp to put in there, to further approach canvas... 

I tried putting in two wefts for each pick and it got a little better. But so tedious. I could probably also do with fixing my tie-up a little more on this sampler. I have a floating selvedge, but for some treadles it wants to hide from me. 

I tried some surface level searching on the 'net for the anatomy of satin, but I only get essays about thread counts on bed sheets from bedding marketers. 

Anyway, that's to say, I am fumbling around in the dark, I don't know how to get results approaching useable, and so inspiration wanes.