I've just started trying this method luvin honey, so I'm not all that sure about it yet...no field experience to report, but I've smelled 2 year old samples from my bud and they seem (at least to my not-so-sensitive nose) to be as strong as the stuff I made just a few weeks ago. I haven't caught any swarms in my traps yet, but there's always a scout or two in them whenever I check so I'd think something's doing the job...whether it's the wax/oil or the old brood comb I couldn't say.
Scott