There's no exact science, it's just something you gotta get the feel for. First you gotta have back up accounts then just do whatever and when things get heated up, slow it down or better yet switch to another account for a while, think of it like playing music.
As general rule, you need to list minimum 5 days auction.
I disagree with that, I always go for shortest time possible with VERO. Shorter time its on the less time its got to get spotted/pulled. You think the shorter auctions will raise more flags on the computer system?
Some items you list vero the minimum eBay will accept the listings is 5 days for auction style. Yes, I believe short BIN vero items will get more chances to get pulled down if cought on time.