In reply to Coel Hellier:
For what it's worth the new 5 + 6 Dragons seem very good.
The major problem I've found with - how shall I put this - the 'other' super-size twin-axel cam available on today's market is that the springs used within them have really been lacking. The result is that they've got an extremely floppy feel, are prone to walking, and extremely unstable. This problem seems to have been resolved by the Dragon, with the added benefit of a 13.75 camming angle which means that irrespective of whether they're over-cammed or fully tipped out, they're still going to hold.
All that said, I'm still not sure they'd actually inspire me to get on an oddwidth again anytime soon!