Okay for the record I own both balls and I consider them both to be some of the best equipment that I own. They both come with me every time I leave the house for a date at the lanes along with a couple other pieces of equipment. At least with my game I find the Paradigm to handle more oil, up to medium heavy, as compared to the Cobalt which works better on a medium to medium light condition. The Cobalt is definitely the longer of the two. I like the hitting power of both balls, they both hit hard and carry. Two GREAT balls from two GREAT companies....