What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Takeoff aborted r/w 26R at cno. Aircraft ran off right side of runway. A new tailwheel was installed on aircraft which changed the angle of incident on the canard wing. With the new tailwheel, the vlof changed from 65MPH to 75MPH. Pilot stated aircraft remained on ground too long during takeoff roll. Pilot aborted takeoff at 70MPH. He thought aircraft should have been airborne at 65MPH. During abort aircraft drifted to right side of runway. Rudder inputs were ineffective below 25MPH. Pilot intentionally groundlooped aircraft but in so doing departed runway. Aircraft was not damaged.
As the FAA filed it
(-23) TAKEOFF ABORTED R/W 26R AT CNO. AIRCRAFT RAN OFF RIGHT SIDE OF RUNWAY. A NEW TAILWHEEL WAS INSTALLED ON AIRCRAFT WHICH CHANGED THE ANGLE OF INCIDENT ON THE CANARD WING. WITH THE NEW TAILWHEEL, THE VLOF CHANGED FROM 65MPH TO 75MPH. PILOT STATED AIRCRAFT REMAINED ON GROUND TOO LONG DURING TAKEOFF ROLL. PILOT ABORTED TAKEOFF AT 70MPH. HE THOUGHT AIRCRAFT SHOULD HAVE BEEN AIRBORNE AT 65MPH. DURING ABORT AIRCRAFT DRIFTED TO RIGHT SIDE OF RUNWAY. RUDDER INPUTS WERE INEFFECTIVE BELOW 25MPH. PILOT INTENTIONALLY GROUNDLOOPED AIRCRAFT BUT IN SO DOING DEPARTED RUNWAY. AIRCRAFT WAS NOT DAMAGED.