I'm planning to possibly buy a ball from Repticon when it comes around again, but I don't want to make some huge mistake and regret it later. What sort of questions should I ask before buying a snake (how old, how much it eats, how often, etc.) and what should I look for/look out for? I've been looking on the internet on how to choose a healthy snake, but I'd prefer to hear from you all. What do you all recommend?

On a side note, I'm looking at pieds in particular. Is there anything special I should be wary of/be sure to look for? Thank you!