Thanks guys, for the information. I guess I will be looking for some furniture foam like PE mentioned and how to cut it up like the rest of you mentioned.
Truckracer, I may have exaggerated slightly on how fast this stuff deteriorates but trust me there are no chemicals around my house or the field that would effect the Dubro foam. I've been replacing this stuff for over 10 years and just decided there must be something better out there.... Thanks again everyone..... Bill