Meyhem I will agree with you if you agree not to eat any of my fish....
I think that you have a point...... GT are not in the same size class as a lot of these other fish but if you keep them with same size fish they do fine.
I have a male Jag that would kill any of my GTs but he is bigger then they are.
If you could make a demasoni the size of a GT it would be one mean SOB.
I will have to tell you that my GT thats in the 265 is going great and thriving.... look at his pic..... no nips on his fins and several of his tank mates were given to me for little or no money because they "killed every thing that you put it with"