I am being honest, I think it is a demonstration of brute force and lathe power. I have a Kel McNaughton coring system and it needs a lot of power, a 2.2KW motor and modern inverter will still stall if not used with care. The same goes for the 1" bowl gouge. I also noted that he was not getting proper bevel support with the bowl gouge as it was skipping when starting the cut - I think because the tool rest was too high.
Please aim for better technique than maximum wood removal through brute force that is being demonstrated here. It is not something I would aspire to.
(ps, not trying to be a misery guts here, but I do think that people aspiring to copy this guy are asking for trouble).
The hook tool was cool though. Kel McNaughton used to do a hook tool which I have, and am yet to even be able to do the basics with it, let alone the finesse demonstrated in the video.
Regards,
Andy.