Oh no, that's not what I meant at all. Of course you will use the original inputs as well. My only point is that as someone just picking it up it may be easier to learn a new attack button rather than a new jump. Most people (I would say) use only one jump and are using it all the time, however we're all already used to multiple attack inputs (3 on standard controls).
Since shoulder to jump is mentioned in the first post, that is what most people will automatically go for (I did as well). I was just throwing this out since, as Roller said, I found it easier to just learn to hit existing inputs faster than to learn a new jump to only be used on one move. Still, I found this to be even easier than that. Obviously no setup is better once perfected, but I just find that this may be a quicker switch given the nature of Brawl's default settings.
Oh, and am I the only one getting "502: Bad Gateway"?