My Lastec 3372 zero turn lawn mower is down and I'm using a Kubota B1700 with a 60" mower deck as a backup. The bumpy ride I'm experiencing is terrible when compared to my Lastec. I mow about four acres and am completely worn out by the time I'm finished mowing. Will my ride improve considerably if I reduce the air pressure in all four turf tires? Any suggestions will be appreciated.