Turn on XP collider 24/7
I'm experimenting with the exact same idea. I bought the 7 day XP collider just to see how many donuts I could generate (although right now I'm only at level 118 or so). Basically I started and ende...
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I'm thinking of doing this too. For some reason I'm bothering with the Rail Yards because I still want more donuts. I leveled up yesterday the natural way and I got two bonus boxes, which didn't happen when I last used the collider.
