Best French Bean variety for drying - yield

[ameno]

I'm looking for recommendations on which varieties of climbing French beans offer the best yield of dry beans.
I'm growing Coco Blanc a Rames this year, and grew it last year, too, and the yield seems only so-so (I haven't picked them this year yet, but you can get a good idea from the number of pod), certainly compared to the runner beans I am also growing for drying. They seem to stop producing flowers pretty early on, after only maybe a dozen or so pods per plant have set.
So, any other recommendations of varieties which give a good crop?

[burnie]

I'm trying Blue Lake to do this, no idea what I'm doing, but they seem to be growing well