that my friend it is bad. One of the reasons I use OD6 is the mix boxes grants. Having a range of 0-1 meaning 50% chance, in my case OD6 works for gold and mix boxes in a healthy way. Also, because work, playing DL5 takes longer and require more actions, and I can't at work. Sure, consuming a bit less on fuel, add up for more gold
OD6 is not where you can make Gold fast. From what you say, 4 times a day farming DL 3v3 insane is where you make it. Farming DL5 I can make 1 million a day. That is like non-stop though.