Hello everyone, new here did some searchs and can't find the answer I'm looking for. I bought a beautiful sinew backed red elm bow from a friend, the bowyer apparently mismarked the bow 40lbs as it is 70 at 28in. My friend thinks this is hilarious and insists on offering to let anyone he feels like shoot it to show off this humor. My Question is can any harm come to the bow form this? I have grown quite attached to this bow and dont want any undo harm to come to it, or undue offense to my friend. I feel these bows come with a shorter lifespan due to the materials they are made from is there any truth to this?bow is rectanglur in cross section with grip about same with just turned 90 to limbs.