Just an update: still using 45 planets, but instead of selling to buy orders I placed my own sell orders this time around. Round 4, A five and a half day round of PI P1 materials and a small amount of low level minerals netted me around 162mil and almost everything sold within a day and a half of posting it (important for knowing how long to put your orders up for). With no changes, and assuming a round value of 150mil without the minerals is what I made from PI, that puts me well 800million a month. This also means I've been missing out on about 20-30 million per Round by not using sell orders. Now I know, and knowing is half the battle