Hi Drew,
Are you talking about what I asked in the other thread ?
If that's the case: I wasn't asking for identical contrast papers from the point of view of science (not necessary, nor useful in my case: I'm a photographer, so my interest is human condition), but for companies that decided to make papers which require a similar use of Ilford's MG filters, as Harman's Kentmere VC papers seem to work in other members' opinion.
As I explained, with Foma papers the difference is huge, but with similar papers, students can learn photography instead of science, sensitometry, etc.
I didn't like MGIV either: I cursed my career with it, and I like their new generation of papers better too.