WipEout HD - Subsonic in Zone Mode

After feeling rather smug about getting to super zen so quickly - from only a couple of goes today, I have managed to hit Subsonic zone (zone 50). Again the game is still rediculously smooth at the amazing speeds you travel at Subsonic. I assuming the next level is Supersonic for around zone 60 - watch this space. I can’t even imagine how rediculous zeus zone (zone 75) is.