So much blabla about ighs ITT
ighs are primitive and just as simple as other mechanical assembly to maintain, repair and modify. Just open the sucker by removing the locknuts, drop it all out of the housing, since youre already at it inspect, clean any lubricate parts according to their needs, and leave out the brake shoes and pawls when reassemblying. The thing will then freely backpedal.
I have never felt the need to backpedal a bike and in theory I value the redundancy of a third brake on a bike that you cant ted shred, bc fenders, racks n stuff.