Ok, reposting this here, because the other thread was declared a duplicate and closed.
So, if Fdev did allow all the size 7 and 8 slots, vs 1 of each, it would be a savings of 5-7 runs per "Big" commodity, and 25-35 runs less total for the project.
The "Big Five" being a reference to the 5 commodities that make up 90% of most construction projects. The context for this example is a T3 starport being constructed.the difference would be, 1430t would be about 5-7 runs each less than 1238t. So 25-35 runs less for the "big five" total.
So, if Fdev did allow all the size 7 and 8 slots, vs 1 of each, it would be a savings of 5-7 runs per "Big" commodity, and 25-35 runs less total for the project.