The P3 is designed as a target bow but you can also use it for hunting as you can do with any other bow, too. It should be kind of 'torqueless'. I would not increase the Letoff as this will make your bow less effective. You could upgrade to the Shootrhough System if you want. This will give you more consistency, will make the bow much more quite and remove any camlean. You can read all about that on the current Martin Website if you look at the Scepter or Mystic. They use the same cam.
(2) Martin ShadowCat 2010