We are talking about tourneys...did you seriously think we were having a rule discussion about weather or not you can switch models in between a friendly game? Okay.
Next name me a tourney that you are allowed to switch out models in any way between games. Every tourney I have been to in 4th and 5th, you were not allowed to modify or switch anything out for any reason unless it was a copy of the exact same model and only if the previous one was broken during a game. Some tourneys you needed to bring super glue to just in case.
Seems to me you have never played in a tourney. However feel free to enlighten me. Your posts have not added to the argument because you have none, and clearly didn't even know what we were talking about to begin with.