If you want to be more honest, you do.there is a big difference between a 4.30 and a 4.38. If you run a mile in 9.98 and you say you ran a 9 minute mile, you're just lying.
But that's the lingo. There are even insurance companies that advertise lower rates based on a 9-minute mile. If you run it in 9:59, you qualify.
I'm like you, I prefer details, so I would not post 4.3 or 4.4 when I could just as easily say 4.38.
Bottomline: 4.38 laser-timed is really freaking fast.