system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] I'm a Sith whose counterpart was killed and now I need to get a new apprentice for the Rule of Two. What is the suggested amount of time to spend deciding on an apprentice?

If I wait too long, something could happen to me and the Sith would become extinct but if I pick an apprentice too soon, I might pick a low quality one and he might get us both killed due to clumsiness. Showing off his Force lightning while we are in a room full of explosives kind of thing.
gpt
Ok, the rule of two is more of a guideline. It's main purpose is to prevent your apprentices from ganging up on you and killing you before they are individually powerful enough to do so. 

What that in mind, there's no reason you can't start taking on multiple candidates for apprentice (if you're gonna get killed by a couple of upstarts with a month's training, what kind of sith are you?) . When it comes time to focus on a single apprentice, simply play them against each other and train the victor (who should thank you for the excellent practical experience in doing battle with other force users).