I've developed HP5+ in XTOL 1:3 at 20 degrees e.i. 200 for the times Kodak recomends for e.i. 400. Negs of people in open shade type lighting print well on MGIV FB with no filtration from my diffusion color head.(posted 9391 days ago)120 was processed in a steel tank. 4x5 processed in tubes. The times are different (as Kodak recomends!) for these two different agitation styles!