Owens Corning 703 vs. Roxul Safe 'n' Sound?


I'm going to make some sound absorbing panels to place on the wall behind my listening chair. Owens Corning 703 and Roxul Safe 'n' Sound rigid boards are two choices to make them with. Anyone have experience with both, or even one?
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I’ve heard good things about Mississippi Studios, but haven’t yet been there. Portland has some great small theaters, and lots of pubs. They pay much better than the clubs and bars in L.A., I’ll tell ya that!
Black Joe Lewis is playing there (Mississippi Studios) soon.


I would like to see Vintage Trouble. Wish they would get back from Europe and do a string on the west coast. 
I use ATS Acoustics. Fortunately I live in Illinois and travel there to avoid shipping. Easy to build ones own panels.