Terms can be a bit confusing. I would call flowers like Gypsy Lord a 'zonal' rather than Emma Cook. EC has a very narrow band ie like Queens Circle. Flowers which have a white zone under the beards come from a different inheritance.
I am more familiar with the spot pattern in SDBs which comes from I.pumila. therefore I have never worked with Emma Cook flowers. the best current hybridizers working now with the pattern seem to be Fred Kerr, Keith Keppel & Joe Ghio. I had never seen 'Northern Mist' (Hal Staley) which would certainly qualify for the pattern. I'm afraid that we won't have a long post today.