Good question! I made up the drill for my swimmers so the name describes the scull, well sort of. Start with your arms extended, then continuously scull as you move your hands down your body (or move your body over your hands). Start with the top scull, finish with a bottom scull. Hopefully, this answers your question!
Workouts off the beaten path 
What is ‘squiggly lines scull’? Never heard this term before.
Good question! I made up the drill for my swimmers so the name describes the scull, well sort of. Start with your arms extended, then continuously scull as you move your hands down your body (or move your body over your hands). Start with the top scull, finish with a bottom scull. Hopefully, this answers your question!