I guess it depends how many acres of canonla you are gonna straight cut. If it would be more then 500 acres I would recommend an auger header, even if it was an old cheap 930. for everything else I would go with a draper. We have a 936 and love it. The only thing it was not good in was the canola. The canvas drive does not have enough power plus with all the shelling going on the seeds get in behind the canvas and ontop of the drive rollers and you are screwed. You can clean it out but you only do one hopper and you are back in the same spot. Plus I think you lose way more with a draper compared to an auger header in canola. The john deere drapers are great though in cereals and peas.