I'm not really sure how it works in game, but It'd be nice if the different Gourgeist forms could have their sizes attached in their name, as the size difference is not easily recognisable on the simulator, and the stat changes between forms can be quite significant.
Don't we already have this though? The only thing that is "wrong" is that the base form's name is assumed as the nickname for the alternative form, if you use the base form THEN change the form