Sorry if I've come across as negative. I'm about as positive of a person as there is. I hope I am wrong and the CVG block hours increase like they should around this time of year!
Regarding the Open Time, Blue Moon's explanation seems the most logical. It wasn't too long ago scheduling would actually hide open time under "DUMMY" Captains and FOs. I think the union got word of it and put a stop to that, though. Enjoy the weekend everyone.