HPI 3 speed? Are they worth for BL?

[mothman]

Im just wondering if the 3-speed tranny is worth for BL power. Ive read about the smooth transition from low to high in nitro savage on various forums. Most of them are satisfied with it. Plus HPI claims that the 3-speed is more durable since hardened steel is used for many of the gears and hubs. inputs will be greatly appreciated.

Thanks