So, if I do understand what has been told here, I can be certain that the Crossbird is a genuine colour-slide film in 35 mm format. So, it can be processed in E-6 to produce 'normal' colour transparencies suitable for projection, scanning and/or printing on Ilfochrome.
If this is true, than we can welcome an almost 'new' but normal colour-reversal film on the market with a EI of 200 ASA to be processed in E-6, right or wrong?
If right, than this is good news, any new film is good news...

Philippe