I've used this chap's videos, to be fair, he's not bad and lets face it, you cant cover everything and go into every detail.
On the whole, he's a passionate, 'shed fettler' like a great deal of us on here and putting his findings out for all to see and learn from. good man.
He was quite useful when I was 'putting together' if your not sure, rewind, rewatch, rewind, rewatch and you very soon become proficient. If it wasn't for these guys some of us would be completely knackered. Gotta love the internet as much as it annoys, its fantastic for the amateur bike fiddler like me.