See JDZ, I told you it wasn't just me being crap.
I did the Cavern / Sink Hole courses at Mt Gambier with JDZ and I don't dive OC any more (unless you count Bailout). The bar is certainly a little higher for CDAA courses than an OC pleasure dive but man was I working hard to keep my act together for the first few dives.
OC is for emergencies.
Even better still is a BOB.
