Sorry to disagree but having read some of your posts in here and the linked thread you do talk some sense but there is a lot of sh1t mixed in with your comments and I am not sure where you have learnt this but it needs refining.
'Clay bar and polish will not remove wax' being my favourite. If it doesn't then how the hell is it going to get to the clearcoat underneath to remove the bonded contaminents or swirl marks.
The photos show nothing more than a slightly glossier finish and do not show any close up swirl removal under halogen lighting and there is no mention of paint depth readings to see what was actually removed. T-Cut has non diminishing abrasives so it will remove some more obvious marks but leave you with a nicely marred finished and continue to damage your paint as they never breakdown. So the more you rub the more fine marks you will inflict.
It can be done by hand but only really on cars with very soft paint or very fine marring marks, French, Japanese and USA cars and using the right products such as Scratch X. If you tried to do a regular Joe's car you would be here until eternity trying to do VAG paint by hand properly is a no go. It just depends on what standard you are trying to achieve some of us have higher standards than others. You could make a difference but by hand but it is in no way comparable to a machine polish. I originally thought that Ovni yellow had no clearcoat and that was what was causing the fading. The Megs polisher is very good but is no better than a pc the main benefit being the fact that it runs directly on 240v and means no need for a tranny.
Please can you post up this professional detailers
guide to hand polishing as all the ones I know use machines and I would be interested to read it.