If it looks hazy it will always have more flare than my free Rollicord in which the haze easily cleaned off. In fact the only way I think I could easily tell if a photograph was taken with a Rolliecord or Rollieflex is if the Rollieflex had fungus or haze on the lens
I'd sent it back. Some 'haze' is permanent. No reputable person that does CLA on lenses gives any guarantee the haze comes off.