Was hoping to have either Ryan or Cathi respond to this question. Please help!
The V266 shaft with a 7 gram weight (red) should come out to about a D4 swingweight in both of those heads. You can lighten it up by one swingweight with the 5 gr. (green) or go to about a D1 with a 2 gr(white). Whenever you order a shaft for a 910, it…