Not going to lie, I think you were the only one who actually picked up on that message because even after that tang police continued to try and argue about why its not feasible rather than just giving me an idea of what would work best.
I'll likely end up with either a two spot/blue eyed bristletooth or another zebrasoma of some sort since my yellow tang is pretty mellow, I'm not concerned about him being a bully. When I originally bought him, the LFS had a purple tang in to and we were debating getting both of them, we put the purple into the same tank as the yellow and watched for about an hour and the yellow could have cared less for it. Not saying im getting a purple, if I do get another zebrasoma it would likely be a scopas or im balling out and getting a gem or black tang