Apparently, among others that people used with greater success than the TF, there’s the El Capistan. That’s according to this thread (page 5):
Might want to add that one to the list of pedals to test. Some also said that Eventide tech support maintained that there was no problem and/or that the problem was actually that the player chose to not use high output pickups, no clean boosts, etc. This was 4 years ago. Y’all have been hearing about these issues for years, now.