I raced my entire college career in the Avanti's, I thought they were a great spike, and I truly believe that the adidas boost was almost like the super spike before the super spike coin was termed. After I graduated college, I raced in both the Next percents and the dragon fly's. The Next Percents were incredible and blew any road flat that I raced in out of the water. The Dragon Fly however did not feel that much significantly better than the Adidas Boost Avanti's. Not sure if anyone else feels this way would love to hear others onions who have raced in both. I personally think it's a testament to how good adidas boost was for its time.