which teleconverter for m4/3 using canon fd lens


I have a panasonic gf3 with the kit 14-42 lens. I have two canon fd lenses with fotodiox fd-m4/3 lens adaapters. I want to get a teleconverter primarily for use on the canon fd 70-210mm lens.

do i get the panasonic teleconverter for the gf3 ...attach it to the body and to that attach the adapter with the canon lens.

or do i get the teleconverter for the canon fd lens....attach it to the fd lens and connect it to the gf3 using the adapter??

any tips?