Yeah, it's a special, ultra-light, ultra-stiffarrow that's specifically designed for HCA bows - up to 75#. It would void the warranty on anything else. The bows themselves come with top-end components (Barnsdale Limbs)and a lifetime warranty to the original owner. Since the arrow is spined so stiff, it can handle the force exerted onto the rear of the shaft (compare to a flimsy, underspined arrow).

I killed both of my bucks this year with that setup - 200 grain shaft with 85 grain Montec head (total weight = 285). It'sshooting in the neighborhood of 350 fps.

If you go to www.highcountryarchery.com - you'll see thebows there. For additional infoon their arrows, either follow the links from their site, ortry www.carbonrevolution.com WARNING: Their website is absolutely terrible.

It's definitely fast. No doubt about that.

Don't take my word for it. Find a dealer and go see for yourself. Some guys find the draw cycle a little stiff, others don't. Some guys are afraid of arrows that light, others aren't. All I know is, with my STS installed, it surely doesn't sound like a bow that's screaming at 370. Also, unlike other "speed bows" - you're working with a big brace height (7 1/4"), which makes it quite easy to shoot.

Fastest speeds I've ever seen, that's for sure.