Too Long
Amery had many affinities as well, as made obvious by his several Innate Nodes. But he had only ever allowed the sword to guide him. He let everything fall into the backdrop and it became his one obsession.
At the same time, he didn't have another Force like Dream Force to give him insights on the plane most Weapon Forces existed on.
In the end, he ended up spinning his wheels. He couldn't see what lay beyond.
Ironically, in terms of raw Weapon Force mastery, until just about a few hours ago, the two were on the same exact level.
However, Leonel had broken through the plane and seen through the mystery of Weapon Forces, allowing him to touch onto a comprehension of Space and Time Forces through his Weapon Forces.
By comparison, Amery was still stuck, and from his progress, he would have continued to be stuck for several more years, even decades to come.