Sorry mate, but it must be only me.

When I sell everything ASAP, my POPs running at average ~30% goods across the spectrum. When I stock 1000 and sell everything above I have 100% constantly (of course with the exception of goods which I cant manufacture early in the game). Perhaps with huge stocks coming huge price reduction so POPs buying stuff for much less? I not arguing that what you saying is wrong. Most probably it isnt

. But stocking works for me even if it isnt right way to do that (and on the other hand I hate to run out of stuff when I building 40 units at once

).