Hello folks, does it make sense to downgrade Yosemite back to Snow Leopard? I own a 17" MacBook Pro (2009). I am absolutely happy with the machine and don't think to upgrade my hardware anytime soon. The evolution of the OS however is in my opinion an absolute disaster and the last OS wich didn't cause any headaches was IMO Snow Leopard. I'm using my machine mainly for graphic design work. Should I downgrade Yosemite back to SL? Or use SL on a 2nd partition? Is there anyone still using SL? Thanks for any advice and hope for an interesting discussion.