I don't know what kind of douchebag trash talks behind some one's back instead of bringing it up face to face - but I've never known Sean to lie about this fish, he's got no reason to.
1. He's got plenty of cash flow for his hobby, he doesn't need to rip people off.
2. Everything I've ever bought from him - which have been hundreds of dollars worth of fish - have been under measured, and are usually a lot larger.
Don't let it get to you bro - those in the know know you're in good standing.