They do loose their valve very quickly and I hate it also. I bought a Mathews Ovation
last Jan. or Feb. for $630.00 with tax and if I sell it today it will only bring $400.00 to
$450.00 bare bow if I am lucky. I decided to keep it for indoor use and some 3D and
my new Darton Tundra will be used for hunting. Yea, i just chucked out another $600.00
for another one. My wife say's I need my head checked. She might be right.