I have to say I was never aware of the 12.5L in the 9750. As far as 9860 Premiums go, there are a number of those in our area (ND), I think it shows them in JD literature also when they were new. Has anyone ever seen a 9750 with a big unloading auger? There was one for sale at Amundson's in Elbow Lake, Mn. Called the salesman, he said there were a handful made.