Yeah, apologies, we did the first round about 6 feet below the surface. For me, at least, the resistance wouldn't have made a huge difference anyway; while some people suffer from nitrogen narcosis and don't realize it, I definitely felt mentally "slow" while doing the test at depth. It was frustrating knowing that, 15 minutes earlier, the task felt easy but at depth it felt really mentally challenging. While I was only about 20% slower, the qualitative mental effort was drastically higher.