Alright. Got a set of sunbeams. Got to love shipping in Japan. Took a day to process the order and another day for shipping.
Well I'm gonna side with tylerwylie. While they do feel a little less stiff, they are about the same tension. Maybe they use a slightly smaller core because it did lessen the relief, but not significantly. About .1 mm. Also I only had to intonate my A string a little, so I really didn't have to do much setup.
They do sound bassier to me than the lo riders. I don't know if they are still new because they do have more high end, and I don't remember the lo riders having that much. The lo riders are still fairly new. I think they are a little less bright with more low mids making them sound deeper? Maybe that was what DR was talking about in my op.
I think I'll stick with the sun beams. I may go one gauge lower next time to see if it gives the neck a little less relief, but that wont probably be for a while since they are supposed to last a while.