If I could have the fill anywhere I wanted it would be on front of the hood like older Deere's.  That limits capacity though and mid-frame isn't so bad.  Dad and his cousins always complained about their 1486 being a hassle over the Deeres.  When we were running a 4255, 4850, and two 4955s you could easily fill two at one stop if not three if you parked them right.