Styles:
UCN: P1hBP1-pI.pI.pI.pI
Handposition: half open hand, rounded finger position, P on soundboard
Dactyl Sectors: Ic
Down Strum (sD)
Up Strum (sU)
Picking (p)
Placement/Stabilization

Repetitive one finger picking is very common in Hawaiian Technique. This video shows repetitive I picking on the same string, but also across strings. I contact is mostly superficial. When string contact and tone intensified, first finger joint displays increased flexibility.