Lookin at the Cabelas Archery catalog, eh?
IMO, those are two of your poorest choices on the market. Muzzy should stick to broadheads & arrow rests, and Phase 1 strings were pretty good about 10 years ago when they were introduced but.....
I' ve tried several of the brands who' s names have been bandied about here on this thread as well as other local " custom" builders and IME Winners Choice and Stone Mountain come out on top.
I' ve heard great things about the Bowman strings from folks whom I trust as well.