The Caddock resistors 's Wilson uses in their speakers will work as fuses if the speakers are driven too hard - most probably the Duelund will not have the same exact behavior just because they have the same power rating.
Martin Colloms old experiments were carried in non documented conditions, admitting for example tolerances in the replacement resistors that Wilson Audio would never accept - I am quoting "
For this comparative test, 4.7ohm and 5.6ohm value resistors are perfectly acceptable standard substitution values." For example, the Duelund cast was 4% high, implying some extra attenuation.
When they were published in 2011 many people tried them. After a peak of enthusiasm and a few detractors
, the affair was forgotten, although it resurfaces from time to time. I remember debating the affair with a few friends very energetically some time ago ...
As always you should try it with an open mind - it will surely bring a small change to the balance of the speaker and in some cases can be perceived as an improvement.