I am using POG OS, and I usually string it at 70# with soft string. I definitely like a firmer stringbed feel. I am going to try a poly for the first time in a while.. probably a year. Going with Topspin Poly Polar 16 in the mains, with some soft cross such as Gosen OG Micro or a multi, also 16 gauge. I could use a recommendation for tension of the mains and crosses! Thanks.