The red dot sometimes hit's the ear but it doesn't appear to be intentional. It's just a random red sharpy dot, and he does it to most, if not all his coins. I have no idea what he thinks he will gain from it. Doesn't tell him if he searched them last month or 2 years ago.
When I say "Loomis", it doesn't necessarily mean the bags will be Loomis. It just means that the bank uses Loomis as their courier. The bank bags may have come from Loomis or one of many other sources. As mentioned again by Magma, you can usually tell which bank they come from because Loomis doesn't re-run the coin. They simply sell you the bag that came off the original banks counter. They will sometimes have other coins, guitar pick's, and other misc. If they do, that's usually a good sign because it has taken awhile for the bag to fill.