When to use higher reasoning [pro+ultra]?

A user on reddit.com is seeking advice on when to utilize different reasoning levels (extra high, pro, pro+ultra) within their chat workflow, particularly after upgrading to Pro. They typically brainstorm in chat and then use a codex prompt in VSC. The user is unsure when higher reasoning is necessary for codex prompts and often has to ask the chat itself for guidance on prompt complexity and settings, noting that "extra high" is best for brainstorming.