Hello, I have 2 MR John Deere tractors from this site and the case seeder with the fert tank. For some reason these tractors can pull the seeder up a hill in the fields. Now I know in real life that either of these tractors can do the jobs no problem, I have looked through the .xmls in both tractors and seeders and I cant find any problems. But im also not very good and finding these issues. I've ran the debugmode while im having this issue and I don't really know what to look for. Any help would be greatly appreciated.