I hear what you're saying, but anecdotally I just cut my days back and find myself a lot more energised and engaged when actually at work. I haven't really comp

I hear what you're saying, but anecdotally I just cut my days back and find myself a lot more energised and engaged when actually at work. I haven't really compared my degree of output yet, but I can at least say I'm a lot more emotionally invested in the results of my work and my job satisfaction is higher. One's mileage may vary.