I want to find out which of the people I am following are following me back (must be a typical requirement!). I can get the IDs of my followers using GET friends/ids and get back 5000’s of IDs. To find out if they are following me then I can call GET friendships/lookup but this only takes 100 IDs and can only be called 15 times each 15 minutes (so it only works if you are following less than 1500 users). There is also friendships/show but this is per ID and will be even worse.
Are there any other ways to get this information that can be more compatible with the GET friends/ids user limit?