Ghost stabilizer is the improved Gen4. The Carbon Craft Ghost utilizes a specifically designed Ultra High Modulus carbon that is 70% stiffer than the high modulus carbon used in the Gen4. Slightly lighter and significantly smaller in diameter than the Gen4 allowing more control in windy situations. Sharing the same dampening system as the Gen4. The end caps are machined from 7075 aluminum which is 2x stronger than 6061.