My friend burned his smn 30-90 in abyssea, he capped his summoning skill rather fast from what I recall.
He skilled it up from duoing stuff with me in abyssea, not casting outside his mh over and over.

The whole logic of not having skillups needs to go away, its simply not true.
People that want their skills capped will have their skills capped, people that don't will not.
Its all on the player, not the leveling up process.