darkSpyro

When you only need a small amount of things left, like 10 or less, use the 4800 box instead. You will most likely get 5 things you already have, so that is basically an almost refund. If you get 7 things you already had, you will actually make a profit. You will eventually get what you need. Better than spending your time grinding. Just bring 10000 gearbits to be on the safe side.

I'm not sure I explained this well...

That's what I do when I have rich Vehicles. But after purchasing medium or large boxes, I switch the rich Vehicles with new ones without any Gearbits and upgrades, and open the boxes until I get a lot of Gearbits to spend on the weapon and armor.