The forward side skin had to be drilled for the step tube, this is done without problem with a fly-cutter.
Then a small part of the skin has to be bend to conform the rear fuselage. The method is well explained in the manual and works (I forgot to take a picture of the setup), and here is the result.
The gap between the skins is normal, one rib is missing inside the fuselage. The picture shos also that the forward part of the bend needs a bit more tweaking to be flush with the skin.



We could not resist trying one of the steps.