Only tips to prevent the suspension from Twitter, don't follow 1000 accounts daily. Probably you can follow max. 60-70 accounts at once, after that big chance to your account will be locked. after a couple of locks suspension coming.
Also, it is not right way if you want real followers, because of follow4follow will give you 90% of automated accounts(which use a strategy like yours), and for sure and they are not too real.
It's not the typical follow4follow system which you're going to put a hashtag on your bio etc. this strategy is your going to look at a big and active page that has the followers you need, and after the page post a tweet you're going to wait for users to like, comment or retweet their recent post and you're going to follow them since they're active that time.
I am not saying about follow4follow hashtag. But if you follow all followers from a big active page, and expect to get follow back, what is it? is it not f4f?
You will automatically get follow back from this method from accounts like yours. So it is not real followers even if audit says 99%. Big active pages also have a lot of automated/bot followers. This strategy is okay to make a Twitter account and you can participate in bounties, but they have very little influence.
You can't say that is an account with 5k followers and 6k follows are real. No, is not.