T.C.
Contributor
Dude, reading the thread helps...
Yes, I suggest that you do it. Critical thinking also helps.
Where in his quote does it say they are always at the same level in the water? Now, think about this. They both use the exact same computer. They breath the same gas. So, if they were at the same level, they'd both hit their NDLs at the exact same time. But they don't.
Diver 1, the OP has different nitrogen loading. This is clearly shown by his running out of NDL time first. Since he is running out of NDL time before the other diver, using the exact same computer, that means he's diving differently. There are two things that will increase the speed of nitrogen loading. Being under longer, and being deeper. As a buddy team, they should have very similar dive times, varying by only a few minutes. That means, logically the changing variable is depth. Diver 1, the OP is deeper, on average, than the other diver.
Now, we'll see if the last five words you quoted can come true.