It's too soon for me to tell. I only just collected my first good pods yesterday and of the two, one was a bee pod. But you are right in that some cultivars are very easy to set pods on and others really make you work for every pod. But don't give up on the hard ones! I couldn't get any pods last year on Gold Helmet , Francis of Assisi or Smoky Mountain Autumn but
they all have set at least one pod this year.