Showing how little colour film I actually use, I finaly got my test roll of Equicolor back. I had dug out a roll of Arista color also and both were sent to Dwayne's. the edge marks on both are the same other than a different batch number. And both equally grainy.
As to why Foma was selling private label ferania, that is a mystery. Maybe as they were using ferania colour cassettes for their own production they bought the film as part of a package deal to get the empty cassettes and quietly sold it off on asian markets.
Any case not likely to result in continuing supplies.