Ben Vernooij is a sport of First Frost with a yellow edge. The Database mentions it is fully tetraploid.
Hosta Registry - not registered
MyHostas Database - http://myhostas.be/db/hostas/Ben+Vernooij
Hosta Library - http://www.hostalibrary.org/b/benvernooij.html
This is a new plant for me. I'm putting one in my back garden next to a new Firn Line and putting one in my front garden.