Headcanon: Scott has prosthetic legs and uses them as boitic amplifiers. Jaal is interested in Scott's homemade design (Lexi greatly disproves and wanted them scraped due to the high risk of explosion) and since Scott wants to impress Jaal for obvious reasons (#MakeJaalBi) he lets Jaal take apart his leg. Later they would design a new set that make Scott that much more deadly on the field. Jaal accidentally designed them for Angaran legs but hey they still work.
