Best F1's of Cläre Grammerstorf

This is a dumb approach to breeding, admittedly, but since the common denominator in so many of the stronger yellows is parentage going back to Cläre Grammerstorf (a rose which is not available stateside, as far as I know) I was just curious as to folks’ experiences with any of her immediate progeny.

I have Lichtkoenigen Lucia, and was a little disappointed with Chinatown (doesn’t seem to care for our soil) and I hear great things of Aurthur Bell…

Does anyone out there have lots of experience with any of her kids, and am I being dumb to be looking so far backwards?

Skip it all, go to Toprose or something from the Westerland line.