If using a single stage, get a case kicker. I made my own and its surprising how much it will speed things up on a SS.
I watched the video, and I keep up the same (or even faster) tempo on my single stage Lee press without the case kicker. I hold the next case with my thumb & forefinger, and just use my middle finger to knock the previous case out as the ram is coming down. Once ya get the hang of it, you can keep feeding the press about as fast as you can pump the handle. I have thought about making a chute, but my Lee press is shaped such that I can just use a box below it & catch 99.9% of the cases anyway.
I have read methods from several seasoned reloaders over the years, and it seems everybody has their own process. But the main thing is to build double checks into your process, to prevent bad stuff.
I have never been a fan of seating a bullet immediately after dumping the powder. I've had my scale move, the powder measure move, and one time there was even a spider web in the powder funnel that was catching some powder grains, so one case was under charged and the next was over charged! I wanna get a look at the powder and compare them before seating, so I don't have to pull bullets or scrap a whole batch, even if I'm weighing every one.
Firstly, because of the above, when I start out I stick a pipe cleaner or Q-tip everywhere to make sure there's no obstructions. I keep my brass in zip-lock bags so no bugs can make a nest inside (I once read an article by a guy who blew up a .38 revolver because of this.)
I prefer to charge the cases in batches, and put them into a block as they're charged. This is check #1- empty cases are in a separate container, so I never have charged & empty casings in the same loading block. I weigh every so many cases to make sure the meter is still on target, and always weigh the last in the batch to make sure nothing has moved- check #2. I put charged cases into the block in order, so if something does go wrong I can hopefully figure out when/how it happened- check #3. Then when they're all charged, I hold the block under a desk lamp and consciously look at every one- check #4. If I have been doing anything at all that even remotely causes misgivings (like using a new powder, for example), I take this a step further. I decide ahead of time that I'm gonna pull say, 5 cases out of every batch & weigh the charges. So I'm not just looking for anything unusual, but trying to find 5 specific cases where the powder level looks different from the rest- check #5.