I installed DP1 when it came out, but found that FCPX would work extremely slow. Any simple task would lag a lot and constantly freeze up. I re-installed snow leopard because I needed to use FCPX (which it runs perfectly fine under). I'm not sure if its because of my specific machine it was laggy or mountain Lion. Can anyone speak to if DP2 works better with FCPX and FCP7? I would like to go back to the Mountain Lion but don't want to lose my FCP while doing it