I'm glad you posted this. Even the 10ms rule of thumb is...well, not always true either! FWIW, if you are playing virtual drums, drummers need something like u

I'm glad you posted this. Even the 10ms rule of thumb is...well, not always true either! FWIW, if you are playing virtual drums, drummers need something like under 2ms response time; even 10ms can be easily felt by a drummer and cause their timing to get way off! On top of that, if you are doing, say, a real-time effect on a vocal track, even a tiny sub 1ms delay causes a weird reverb effect in her monitor vs. the singer hearing herself, which will cause your singer's singing to get out of sync!