what would you guys think will work best in a 7.1 surround system. Dipole/bipole (fxi5) or bookshelf speakers (rti6). I was told that you can use the fxi5's for the side surround and rear surround. Is this correct? Crutchfield told me that I am supposed to use the rti6s for the side and rear. This will be majority home theatre and not music. What do you guys recommend for side surround and rear surrounds? I have yet to put in my fxi5's, which is why I am asking this.