I honestly am still against it. I think it should only be allowable if you're going down the Pokemon Breeder route, seeing as their job is pretty much to take care of a large amount of Pokemon at once.

There was also an explanation in the Special manga too. This was posted from a forum thread discussing this. [url=http://bmgf.bulbagarden.net/f455/six-pokemon-limit-165976/]Here is the thread.[/url]

"In Pokemon Special manga, it was said that there is actually no limitation about how many pokemon a trainer may carry around at one time. But there is a fear that trainer cannot equally split the care and love among each pokemon within his/her team. Therefore Pokemon Association set a rule (or more correctly speaking the Code of Ethics for pokemon trainers) saying that pokemon trainers should at most carry 6 pokemon each time. Carrying more than such number will be deemed as irregular and will be despise by the community. Official pokemon battles also adapting this moral rules, so pokemon battles under the official regulations is limited to using maximum of 6 pokemons only."

So, the practice of carrying more than 6 is also looked down and frowned upon. I'll let it slide, but you're going to have to think about it a bit more maybe.

EDIT: Oh and, your saying "I want to be that exception" just tells me you want this for your own ends to be a special snowflake. Please. Don't do that. None of us will look at you favourably from then on. Especially in an RP where we can already have such varied characters and Pokemon teams and styles.