it took 11 posts but we finally got to the important part when Shortshaft reminded everyone of Independant Inspections (or Duplicate Inspections or RII's, whatever they're called in your legislation). It doesn't matter whether or not the duals are 'quick-disconnect' or not, by removing or fitting them you're disconnecting/connecting a primary flight control and legislation, i.e. legal requirements, are very specific on this matter.
Those of you out there who are performing this task should be aware of this - particularly when everything goes pear-shaped - and those who are doing it under the authority of a local/company 'approval' or 'authorisation' should ensure that this aspect is adequately covered, for the same reason.
Shortshaft - I see you reside in Asia, perhaps we learned this working on the same register.