Firstly, let me say that my enquiry was genuine.
The model in question is being promoted as being 'the most rugged' you've ever offered and I was drawn to wonder just why this is so. I was potentially in the market for one if I could see had improvements over the four very similar models that I presently work with.
Before I had the use of a semi-industrial mechanised guillotine I used to shred at least two kilograms (about 5lbs) per week. So, I've worn out and rebuilt these four machines quite a number of times. I think I know what they like and dislike and a fairly good understanding of how they work.
1. It's certainly a surprise to me that a lubricant (other than possibly a light misting of water) would be used on the leaves going through the rollers. I am left wondering why you would need this. That's what made me think it had bushes rather than bearings.
2. The 'toothy thingies' is your expression, not mine. Any 'newcomer' would know nothing about these 'thingies' because they simply aren't depicted. And whether you call them 'rakes' as you do or 'combs' as I do (principally because everyone I've ever bought them from, as spare parts, also does) is a matter of semantics. They do the same job irrespective of whether they act like a rake or comb.
3. The reason I asked about a cover over the cogs isn't because I was worried about losing any skin. What I do know is if you run one, motorised, you need grease on the cogs. If you overlook this the cogs simply don't last. From experience I know that if there's grease on the cogs and no cover they'll very soon collect and clog with more crap than you can imagine. It won't always look like it does in your 'studio' shot, with machine as clean as a whistle with a bunch of beautiful shred only the slide.
4. Okay, those 'silver knobs' had me bluffed. It's obvious to me now but you normally never get that view of the captive carriage-bolts because there's a bracing cross-bars (like the ones on top) hiding them. This machine hasn't got those bars. Now I see that clearly, but what are those other four hex bolts (or maybe studs) doing?
With respect, I'm not trying to knock your offering but as customers can only decide from the information they're given online I do think a few more pictures and a bit more information would be helpful.