At first glance rules are made, it would appear, to make things hard and secure ones job. However when situations are analized you find that rules have been put in place,generally. as a result of an incident / accident
The issue is not how hard or easy the task is, it is who is RESPONSIBLE for that task. So duals generally are easy to fit so why make it hard by adding paperwork.
An example. Earlier this year a pilot was having a check ride in a AS350 and was requested to fit the duals. In they went, easy. Except the cyclic was around the wrong way. True story. It resulted in restricted movement etc and a damaged aircraft. It cant be done, I hear. It can, if the murphyproof rivet has been at some time removed.
Responsibility here is now far reaching. Who did or how was the murphyproofing removed? Would another set of eyes noticed the error? Would someone else (an engineer) not under the pressure of the check ride fall into the same trap?
Who really now is responsible?
There is no doubt that when you have "to sign" for something there is always that extra bit of effort made.
Look at it this way, maybe the authority is trying to help you.
Not all is lost and as has already been mentioned get a Maintenance Authority if there is provision for it. After all you have one already for the AD's you sign off as a part of your preflight, dont you???