Originally Posted by snoopyrc

Don't know much about it. I just assumed that they made a sport version like they did with the T3. It was the same deal as the other kits where it's the same design but with less expensive materials. They are not as good as their more expensive counterparts no matter if it's the T4 or the Spec-R or the Sakura, but VTA does not expose the limits of the cheaper materials so it works pretty good. I think Serpent even has a cheaper version of the S411. Not sure if the BD7 Sport is out yet or not.