Can't help you with an educated
opinion on CCF's, but I still have ~10% in PCRIX.
In backtesting (using 'synthetic' historical data :confused
they appear to be the world's greatest diversifier. I've read numerous reasons why that might not persist, but I figure it's worth risking a ~10% stake from a well-diversified equity-heavy portfolio in the event that they do turn out to smooth the ride. If I were more confident I'd take a much larger position. Time will tell.