Fastest time you have seen/heard someone get to 1500 hours?

I went from 300-1500 in about ten months. I graduated ATP's CFI school and got a regional CJO before I even checked into my assigned location (interviewed in the morning, did my first lesson later that afternoon). This was in 2017 and having the CJO in hand combined with how shitty ATP was to work for really motivated me to finish, so for the next ten months I: Worked 7 days a week, 4 lessons a day whenever possible. The only days I actually took off were a couple around Christmas because the school was closed for those days. During times when ATP didnt give me enough students, I got a freelance CFI position at the school next door and taught students over there. This was tricky, because you can only teach 8 hours a day so I had to be careful with how I scheduled myself both places. ATP threatened to fire me for doing this so I gave them a resignation and quit. The next day they asked if they could un-fire me and give me more students. I accepted and kept teaching both places. Many of my students were international and would want me to act as a safety pilot for their post-training time builds, so some days I would teach 4 lessons at ATP, eat lunch and dinner in the airplanes, go next door and fly another 3-4 hours as a safety pilot. In the summer, I would start my days at 5am so I could get a full day flown before thunderstorms would pop up (Florida). I also did check work for both schools so I would do pre-solo and pre-checkride evals for other instructor's students. And before theres any comments on the quality of instruction from someone working those kinds of hours, I have a gold seal. I am now fully retired from instructing....forever.