Hi Chris, I know well the history of sibpalki.
In the 70s a Korean teacher came to Argentina saying that practicing the martial art called sibpalki and his style was that of his family.
Some say that this style has nothing to do with the historical sibpalki but a variant of hapkido as this...
Sipalki comes from Korea.
Sipalki means eighteen techniques, three with empty hands and the other with weapons.My Master Raúl Luzco after 30 years practising Sipalki founded his own school, its name Jumeog Bi Kwan(fist's secret school).
For more information : SIPALKI JUMEOG BI KWAN