How many groups /acc for groups posting?

How many groups /acc for groups posting to keep accounts safe? I am going to use 5 old year accounts, PVA.

30
50
100
?

2 per day to start with

Aged PVA accounts, even if they are 10 years old get banned.

Hi, mate it depends if your posts are getting reports - if it does my suggestion is to post one post to 5-8 groups per 3 days per account and make sure you are making some real human activities with your accounts. Try to normalize accounts with liking posts, posting on the wall and other activities that's make real human at least for 2-3 weeks before posting.