I don't know anything more about IHA other than what is out there for public knowledge. I merely offered my opinion based on what the trainer has said and what I've seen. He's said he gets body sore adn they have `Thumper' travelling with them. I've worked with `Thumper', and he does great work, but I'm guessing he's there for a reason.
I'm not sure why having an opinion or saying everything is perfect and it's a lock is so offensive to some and brands me a `hater'. It's a discussion board, no?