Has any one found a seat cover for the 825i seats? I have the 21", yellow seats, and they do not like grease and mud very much. SO I would like to put a seat cover on them. The recommended seat cover in the book is the 18" seat cover which does not fit. When I tried it, it actully pulled the seat up from the base when I sat down on the seat. If one is found this would actully fit the tall seat on the X540 lawn tractor too, which has just found a new home in my garage.. Yeah More green!!