Not quite sure why you're addressing that to me.
Originally Posted by Poisson Du Jour
As you know there were various work arounds to lower the contrast of Cibachromes, masking, alternative first developers etc but the high contrast was always acknowledged to be a problem.
The "oomph" as you call it is also a matter for personal preference, I happened to prefer the Fuji Reversal paper which gave more subtle accurate colour and tonal rendition, but of course saw many superb Cibachromes over the years.
Whether it was Ciba's intention for Cibachrome to be such a high contrast colour paper or not many commercial labs spent a lot of time and effort into significantly reducing the contrast to make the paper more usable with a wider range of transparencies, something that they shouldn't really have had to do if the paper had been better matched to reversal films.