My point is that he couldnīt have learned it at the Garden.
Cidīs actions seems to imply being a specialist on gunblade itīs not a criteria to become a Seed and therefore he canīt force one to become it.
Balamb Garden specializes on Para-magic,the general battle system and general military considerations.
It donīt teach you how to use a nunchaku or a rifle or a whip,etc...
At least there isnīt evidence on it.
BG studies each students inner ability and equip them acordingly.But they donīt get training on each of those.
Good point.Instructors at Garden have to be SeeD right? That is a bit of a plot hole.
Who were the first instructors?
Esthar scientists?
Cid himself?
Maybe the first instructors were just to read books from Esthar to learn things.
Or maybe the Shumiīs have already this knowledge.