The Ronstan rig adjustment handles do not fit the standard shroud adjuster without a little bit of modification. Years ago, Don Cory showed me how to add Ronstan handles to my standard shroud adjuster: 1) using aluminum strap, form a square that fits over the existing standard shroud adjuster, 2) place the aluminum square and Ronstan handle adjuster over the standard shroud adjuster, 3) apply vasaline to the stud thread and screw into the standard adjuster, 4) apply tape to the exposed thread, 5) apply epoxy to the shroud adjuster, aluminum square and Ronstan handle...let it soak in and cure, 6) remove stud from standard adjuster, cleaning off tape and vasaline, 7) install stud into standard shroud adjuster. Attached is a photo of what the final product looks like.