Tony,
I greatly appreciate you taking the time to cover those topics. Let me try and be simple and to the point while answering your inquiries.
Weight wise, the fabrics are pretty darn close. The monkey fleece is a standard fleece that can be referred to as no pill fleece. The 100 wt and 200 wt are polartec fleece. And the 200 is a bit thicker than the 100, but not much weight difference. The 100 and 200 wt fleece are in plain colors. 100 = black, while 200 = blue and red.
Momentum 90 (1.1 oz/yd) is one of the most popular as it comes in blue, yellow, red, and off brown color.
Nobul1 (0.67 oz/yd & Dark Grey) is a fabric that TiGoat sells, and it is light and thin… but strong. Really nice for the UL'ers out there.
Pertex Quantum (1.1 oz/yd) is a shiny metallic grey and is on par with Momentum, matches with everything.
Differences between the materials is really more of a preference as to which color. You might save a gram if that by choosing the Nobul1. But I personally think that is just splitting hairs.
If you love monkeys like I do, I would get those. If you think warmth of your ear and head/neck area is a plus I would choose the polartec 100 or 200 which is thicker and probably more comfortable. But honestly I would say they are all really close.
As for the pad, I have not really targeted the CCF pad, but I would be happy to get something started and see what works for you. I would just calculate pillow size, contents you might stuff, width and height of pad, and make a prototype for CCF pads. Let me know, or just request the custom order.
I will gladly hit any points I missed or further questions if you have them.
Wallace
SupaChef