Depends on your taste and plans.
These will be good in few days.
Explanation:
If the hats are still closed (like the most in this picture) the hat and the stem do not taste that bitter.
If the hats are fully opened, the stem tastes a way more bitter, the hats are relatively aromatic and taste a way better and contain the most Psilocybin.
Another reason to wait, can be: you wanna take spore prints.