What is a tactical withdrawal?

A tactical withdrawal is an early first bank withdrawal after priming, based on the idea that its the most likely time your account comes under a manual/trader review, at which point they may profile your account and behaviour.

If you look like a mug at the point of review, then you're more likely to slip under the radar and extend the life of your account. Think about the opposite, if your first ever withdrawal is after months of "smash and grab" and taking value then when/if that review comes they're going to know what you're doing, the premise of a tactical withdrawal is to avoid that situation as long as possible.