  In recent papers arXiv:1103.3564 and arXiv:1103.3565, Gates and Koutrolikos
announced the construction of new off-shell formulations for massless higher
spin supermultiplets. Here we demonstrate that all of their models are obtained
from (some of) those constructed in 1993 by Kuzenko, Postnikov and Sibiryakov
by applying special field redefinitions.
