I dropped the fork sliders off at the machine shop to have the bottom holes opened up to fit the compression adjusters. I hope to have them back mid week. My BRP chain guide showed up and I copied Indy Unlimited's process and got it mounted with ease. It took about 2 hours (half of that searching my metal rack for suitable chunk of aluminum). As noted by others, the boss cast into the swing are are nearly 1/2" thick and drilling and tapping them to M6 will not be a strength concern.