I diverted due to this yesterday but managed to get in and out of TFS later with everyone working hard to clear the backlog. Not a clue as to the cause but it was a typically gusty day at TFS with wind 050/25G35 when I arrived which could have added to control problems during the RTO. Apparently the aircraft was too heavy to jack so they had to defuel before they could shift it. Hey ho, another day in the office and everyone safely looked after by their professional pilots.