It is a reflex growler, which is made by hoyt. Hoyt ditched the name and brought it into their main lineup as the superhawk this past year. So you basically got a $500 bow all set up $300, good deal to me! I shot a superhawk and thought it was extremely nice to draw and shoot. If you want spine advice you should mention your draw length, point weight, and draw weight.I just purchased a 2008 hoyt growler and wondered if anybody could tell me they thought of the bow. i paid 300 for the whole set up site, whisker biscuit, quiver, and bow. i was trying to find a good spine arrow to shoot out of it.