Thanks, Cindi.
I have a couple of roses grafted onto Manetti and De La Grifferaie, and both of those rootstocks do a good job, but most of mine are grafted onto Dr. Huey, R. multiflora, and R. fortuniana. I think the methods used in grafting might be more important than the type of rootstock used. My roses grafted onto multiflora from Palatine, for instance, always end up much larger than roses grafted onto the same rootstock from Pickering or Hortico.