Birdhunter50,
This is my fifth build so I'm very familiar with the trials and tribulations of regulating these guns. The .450 #2 that I recently finished, was not all that bad for regulation. I've learned to be very careful with measuring and controlling centre to centre dimensions, both horizontally and vertically, during assembly. I actually thought about doing exactly what you suggest but the nickle seems to be ok on this Laurona. I'm going to live with it until everything else is finished, then re-assess the situation.