A late contribution - I bought a big RB67 outfit new about 10 years ago and included a compendium lens hood because I'd never owned one before. For me it was a big mistake - I never used it for a single picture. My best buy in this area was a set of 77 mm metal lens hoods for my 3 lenses (50, 90 and 180) from Active Industries in India - these hoods were ridiculously cheap and I was particularly glad to get rid of the horrible rubber push-on hood for the 50 mm lens, which was always falling off. Furthermore, I always like to have rigid lens hoods, especially for field work, so that I can put lenses down standing on their hoods and know they will not be damaged.
Regards,
David