Performed this over the course of 7/6 to 7/8. This proved to be deceptively challenging as the shear number of holes cause some misalignments. The instructions allow for filing the mount holes as needed. In some cases, I ended up having to use a unibit and open the holes an added 1/32, and in a couple of cases 1/16". In addition the holes previously cut through the bottom skin using the template were too small, so I had to gradually open them using a Dremel to grind away the interfering spots. Long story short, countless fit checks and removals before both mounts were able to be installed. Not as difficult as Prosealing the fuel tanks, but still difficult enough to be glad that it's done with.