I think the idea is: if you have to work anyway, you might as well get some huge Z1/2 volume in while you're working. Most of us with regular 9-5 jobs don't us

I think the idea is: if you have to work anyway, you might as well get some huge Z1/2 volume in while you're working. Most of us with regular 9-5 jobs don't usually have time for the 25-35 hour training weeks that full-time pros sometimes do.