There's been a whirlwind of ideas and WRs over the past few days. One idea was what is done in this video by Neerrm which is not a PB for him, but it is a unique route that runners should be aware of.
Using only Flybot's charged up slam move he does the run in six fights, same as my 1:45 and his 1:47 runs, but with Two At-Bats instead of one.
The obvious benefit of using a Flybot is being able to completely avoid being hit while charging up a massive attack as soon as the fight gets underway. The downside to Flybot is that hovering and charging drains its power so quickly that you need almost a full bar to deal over 200 damage with a charged attack. For a 6F/1AB route (used in the WR runs) to go fast, you must get into fights with the 3B at a distance no less than 76M from home plate, and then with the SS at 85M. At the start of every fight, the distance between your runner and the next base is counted up, and during that time your maximum power bar for the fight is drained. Flybot won't have enough juice to deal a massive hit during those fights. So our solution was just to do 2 at-bats, so every fight would start with a low distance value and a high power bar.
However, Neerrm theorized that a Flybot 6F/1AB route could be feasible if done similarly to the 1:45 and 1:47 Tank runs. Do 255 damage to SS, 3B and C in the first fights. In the second fight with SS and 3B, still using your first batter/runner, whittle down the opponent to about 46 with your gun, then do a small charged slam to finish them. We don't have any working math to determine if that would be faster or slower than the current prevailing route. Nor am I aware of what might be causing fully-charged attacks to sometimes have their damage reduced from 255.