The three techniques all had their strengths and weaknesses, so much so that it was hard to choose between them.
The obvious choice seemed to be the highest-rated skill, but there were too many variables in play.
On the one hand, thanks to Extricate, Rune Soul, and his Dual Class Constitution, Sylas had more understanding of his body than practically anyone on Earth right now. And he believed that included the Sylphs.
This meant that he was uniquely suited to grasping a Gene Skill in general, let alone a Gene Skill that was so compatible with him.
But, on the other hand, the power of <Cyrobane Elevation> was not his Stat Limit—which it could elevate—but rather his Gene Limit.
He could easily imagine a future where <Cyrobane Elevation> wanted to improve his Stat Limit, but couldn't because he either didn't have the Genes for it or he had already reached his Gene Limit.