i take it the 160 psi is for your hpr???? i have mine at 200psi maybe you should up it just a bit if anything just to see if it does help by the way it sounds it is not a board prob or spring but psi. if it makes you feel anybetter a wgp cocker should run on 400psi they say but systemx cockers work well at 260-300psi stock
hope this helps
"You gas up the marker, put on the gloves, strap on the mask, and walk onto the field.. it doesn't matter that you failed a test, that your girlfriend broke up with you last nite, or that you got a ticket on the way there... your world is right for the next 3 minutes, this is your heaven on earth."
your heart never dies...but your body does.
for cocker help go to http://magman68.tripod.com