When I was a new bow shop dealer I called Martin and asked the question should I leave a bow strung and or unstrunk in the bow shop. They told me with the new materials you will not lose a oz of draw weight. The also said most damage came from a bow being strung and or unstrunk with out the aid of a bow stringer. They also said they had a bow in the mfg area that had been strung for over 20 years and still is the same peak draw weight as the day mfg....so I leave the bows strung during the peak season of May thru NOv and then take down and just store on two wood pegs. Now for my own bows they never get unstrung, as I continue to shoot each of the 3 bows somtime in a month time...
now if you have a self bow made 100% from wood, you never leave it strunck as it will take a set.
Bill