  Dujavne et al suggest that the observed spectra are a result of spin-split
Landau levels and spin-flip energies reveal composite fermion interactions. We
find that the CF effective field formula is incorrect. In fact, CF model is
independent of spin so that the interpretations of data by Dujovne et al in
terms of CF model are incorrect. It may be pointed out that the experimental
mass of the quasiparticles is several orders of magnitude smaller than the CF
mass.
