i think cm can work well, provided that you are willing to pay high price for your ingredients created by your own corps. do you want to really take the times to compute the output quality for all your products?
i have streamlined strategic products, and has work okay, but eat too much of my cash.
if there is an option to put a fix price on your supplying ingredients, then should work but i don't think this exist in a flexible format because works well at 100% productivity only, where your cost of production is lowest. if your cost of products vary greatly do to supply chain problems, then you are mess up.
as existing, this common do not seem to want you to inject too high of quality to your process. thus probably only works for products that are greatly available on the market? this kind of reverse the whole concept of a common market where you buy and sell within your own corps? you are buying outside your common market into your corps, which defy this whole self-sufficiency ideal?
the gm's soon to introduce "raw materials quality" into the equation will just make things much more expensive. now the only two variables were quality and quantity, but the next version looks to be price, quality, and quantity; but price is depended on quality twice?
i'm still keeping eyes to make this work.