If it only works on a Wizbang 200 and cannot be reproduced with the Doodad 3000 then it probably doesn't work or there are other variables missing from their re

If it only works on a Wizbang 200 and cannot be reproduced with the Doodad 3000 then it probably doesn't work or there are other variables missing from their results. Specialised equipment should not affect results (proving that equipment is broken has some value though).