Another popular test everyone loves to use is the Edge of Tomorrow intro which has a bass sweep down to single digits. It can damage subs without a limiter and is often used to show off.
This pursuit of ultimate low level LFE is in the end pointless for most people. You have nutcases on Avs (no offence to nutcases here

) who run 8x 18"monsters in a 1000cuft closed room and still think its not enough.
You have to pick between extension, which is very very $$$ to chase, and mid bass output, which is the 'chest slam' that most people know and want. There are plenty of very respected members on Avs who say that a sub designed for mid-bass (like the DIY Flex/VBSS) is actually better overall.
Its the age old debate between sealed vs ported.