I'm a light aircraft pilot (DA-40) so don't fly the heavy metal. I do mix with the larger bizz-jets (G-V's etc) often at my base airport.
I use long final (note the singular!) for 4 to 8 miles.
Short final means less than 4 miles
This sounds like a long way..but bear in mind that 4 miles (to the *centrepoint* of the runway..which could be half a mile from the threshold or the Navaid that is in use) is not far. 2 minutes at 120 Knots ! 1 minute 18 seconds at 180 knots. Not long.
You don't want to be on (or clearing) the runway when things are that close !
Hope this helps
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