SHREWD VANTAGE HUNTING STABILIZER BLACKOUT 7 IN. The Shrewd Vantage Series Hunting Stabilizers are designed with STS Carbon that features high modulus carbon and an internal taper exclusive to each length for a rigid and lightweight system. The HiLo Dampers work with the STS Carbon to isolate and reduce high and low frequency vibrations for unrivaled dampening and noise reduction. Included removable 4.80 oz weights allow ultimate adjustability for bow balance and stability.