Read a bug report recently (can't remember where) about FCP X crashing a lot with CFP. I had two chances to test it, but stayed with Colorboard for simple CC and Resolve roundtrips for more advanced corrections (no real serious grading though). I consider to buy it now. Can someone tell me it's safe (iMac 5k late 2015, maxed out)? Thanks in advance.
the warning was about one very special configuration of MBP. Think it was with in-built Intel graphics or so, not 100% sure. No other systems were affected so you should be fine with your iMac (I am with mine!).
In Denver's last mail he said that Apple already addressed the issue in their new beta so it sounds like it's not his fault.
Have fun, CFP is a great tool! And I love it even more since I use the Tangent Ripple with it, my first real color correction controller