Everything that Banditfarmer said.
If you want straw find someone to do it with a walker machine.
I buy some small squares of straw from my neighbor each year for bedding. He uses his 1460 IH, slows things down, combines when it's tough, etc. to get straw long enough to bale... and still is lucky to get 1/3 the bales as he would with a walker. The last time he baled some for me (from behind a 9500 JD)he was amazed at the volume of straw.