To be honest, a lot of "staying under the radar" is luck in my opinion. You can make a new account sell a few items day to day than start pumping them out in a few months. Still though it all depends on when they catch you, if you're selling high risk items they are going to stay high risk no matter what.
The reason people say to sell little on a new account is because once you build a reputation of selling a particular item people will be less suspicious of you selling that item in larger quantities. However, I look at it this way, it all depends on when a competitor rats you out or VeRO gets you. If this is a brand new account sure you can sell little by little than build a reputation, but that's not going to stop VeRO or your competitors from stopping you even after you build a reputation.
It's like this let's say you're a brand new customer (brand new account), if you go to a convenient store and steal (selling high risk) a bag of candy you're most likely not going to get caught stealing so little. However, if you go in there and start stealing huge amounts of candy the store clerk (ie: VeRO, competitors) will catch and stop you. Now let's say you've been going to this store for awhile now (3-4 months) the store clerk will pay less attention to you so you can steal more, but in any case you're still stealing so if you get caught your done.
There are methods in which you can be better prepared for selling high-risk, if we're still going with the convenient store analogy that would be like becoming a better thief, though I'm still to inexperienced to know what these techniques are. Maybe some of the other forum members can help with styling your auction listings so they get less negative attention therefore "staying under the radar".
By the way...I'm in no means saying that people who sell high risk items are thieves that was just the best comparison I could come up with.
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