Yes,if you have a less than perfect lawn, the mower rides a little rough.By the year of your unit,you should have the helper springs located on the back edge of your deck,try to adjust these springs as tight as you can get them,regardless of what the chart shows,this will help the deck float a bit better.Also,try to adjust the tire pressure a little,this will also help the ride a bit.The newer style decks,like on the BX and the T-series mowers are suspended,and don't completely float on the ground contour.Yes,we have the 60" deck,and does a great job of mowing,other than it could ride a little better,hope this helps.