I am one knowlege block away from Chapter 6 and have been upgrading my butt off for about 3 weeks now. I am suddenly having problems staying flush with both coins and supplies, though they are up and down. It's ridiculous! The developers need to change the tree a little so that everyone doesn't have to research their unboosted goods, but rather earn coins or supplies, especially certain chapters. AND, i think it should be made clear somewhere that the upgrades are required for certain chapters so that folks don't get left behind and end up AS the 8-ball in the corner pocket, struggling. THAT truly sucks. I was previously made aware by a few, but I had not encountered a problem untill I started finishing my upgrades. GEESH! This is time staking and painfully slow. I can't even play the spire and barely compete in tournaments because I need other things sooooooooooooooo badly! It should not be this upside down, ever! AND yes, I read Gems and Forum, but nothing is that specific. OK, so I am complaining, as usual. I'm still gonna make it, cuz I'm NOT a quitter!