If it can happen, it will.
John. that was what I was wondering. The installation would only be 'visually' different to the experienced.
If the manufacturer is making parts that will easily fit when incorrectly assembled, then the manuals must have appropiate warnings in the procedure.
Mores the pity when in some cases the manual is NOT referred to, either because the job has been breifly explained but details not made clear, or because it looks too simple to bother reading about.