Because I don't like ties, I decided to time frames for a run of FlandreB stage 1 I just submitted against the record at the time, since they both displayed 16 seconds for the in-game time. When adding up the time from first frame of control to last frame of boss health bar displaying for each phase, though, I was consistently getting above 17 seconds for the current record, specifically 17 seconds and 5 frames. That's a small enough amount over 17 seconds that I suppose I could have been miscounting, but I kept coming up with that time, no matter how many times I recounted it. But, if you subtract the hitstop frames that occur when attacking Reimu while her barrier is red (and the attack doesn't end the phase), which is 19 frames for Flandre's projectiles and 5 frames for Laevateinn swings, the time for the current record becomes 16 seconds and 15 frames, while also keeping my submitted run within the 16 second range as well, as I only used a projectile to break the barrier without ending the phase once in my run, while the current record did so twice, adding an extra 19 frames to it. It's certainly possible I'm wrong about the specifics and more testing is certainly needed, but I think it would be nice to be able to determine times into the milliseconds, as many individual level runs take less than a full minute already, and some don't even take 10 seconds.