The reason for the prohibited FRT initially was because RCMP went by manufacturer specs of 105mm. When measured to Canadian standard (to the back of the breech) all P7 measure to around 106.6mm. H&K manufacturing tolerances are to a fraction of a millimetre so they are all the same, and I have never seen one that was actually prohibited.
Those of you that know me, know that the P7 is my favorite gun and that I have some knowledge of the platform. I am a P7 armorer and I would like offer my time gratis for the good of the community (I am not on the waiting list). A P7 can be function checked and visually inspected in minutes, if not less. I am driving distance to the distributor, and would be glad to drive down, spend the day and inspect these pistols. So they will no be hesitant, I will come with police background clearance in hand and firearm business employment references.
PS: crunchiespg you are confusing the P7 with P9s. The P9s is the one with the roller delayed blow back like the MP5.