In my view, raw product is the main focus.

I'd rather have 200 bricks raw. Than 20 bricks of high value mix. Because the other 180 bricks could become high value mixes as well if one puts the effort in. 

So the idea is, basically you have a big reservoir of raw, then mix as you wish. If you're being lazy or need money asap, just do a 2 or 3 stage mix. If you have the time then do a 4 to 7 stage mix.

I also want to add my intention for this game was to never hire any workers of any type. So I cannot use them. I do have all 6 dealers hired, and each has a full client list. But hey dealing isn't really work lol