Twitter follow rate

Hello everyone!
I've been using the follow and unfollow method for a while now. Pretty much abusing the feature in the past. I'd follow 1000 people a day and unfollow even more in the next 3 days. Twitter seems to have clamped down on it and now I can't follow more than 100 people a day – is there any way around this? I see other accounts doing it all the time without getting their account locked