I find Dave quite difficult to watch - but he's a clever man and knows his live sound stuff. In some videos he has the idea of taking two consoles - feeding identical signals into them and then nulling the outputs, revealing what each one is actually introducing. He put the Midas and behringer desks against each other and came to the observable conclusion that the processing and electronics was not the same - he also did a great cable experiment - taking every long cable in his stock, and end to ending them, and then putting a 58 or something on the end with a huge amount of cable - like a mile, or close. I think he likes debunking traditional thinking and doing real tests in the real world, rather than on paper. He also does mic stuff - where he pulls expensive mics apart to fix them, having bins of faulty ones to use. Things that I have never touched - like diaphragms on dynamics and condensers he routinely prods to check the surrrounds and see how they work. His sub experiments are interesting too. He's trying to move people in live sound away from putting subs onto the main L+R and sending only sources that would benefit via an aux or matrix send. Something I've never done. That way, the subs are only doing low frequencies, and not trying to make rumbles from mic stands and resonances from hardware make a sound. He does seem a strange fella to listen to, but he makes sense.