the University of Hawaii's DL over Mississippi State's?
We averaged 5.3 yards per carry against UoH. We averaged 1.6 against MSU. We also averaged 1.6 ypc against UMass, BTW, and I didn't see any Polys on their lines.
So just from that little sample of what I saw on the field this season, I wouldn't make any assumption that all-Poly is going to automatically mean high quality.