I had VS 16/Timo 18 at 62/65 pounds. Don't know if it was the higher tension on the poly or the thin gauge, but I thought the thin poly would saw through the mains even faster!
With a multi/poly hybrid, the multi is fully trashed while the poly is untouched.
I'm now getting some decent life out of my VS gut/BB ALU Power hybrid. At lower tensions, the strings broke even faster than at a higher tension! At higher tensions the strings locked into place and prevented any excess moving that lower tensions gave. Usually my strings break faster with higher tensions, but not this time.
I'm tired of switching strings and need to settle on something fast before outdoor season starts!