  A recent analysis of pion photo-production multipoles using p(g,pi0) data
from Mainz is repeated, successively adding constraints from other observables
and varying the number of fitted partial waves. The original analysis is shown
to have been underconstrained and suffered from ambiguities. The inclusion of
additional observables in our analysis results in a very different, but stable,
ratio of E2/M1 multipoles at the delta that is consistent with the Mainz data
set.
