Thanks a lot for the help from anyone that messaged me. And a huge thanks to Kranz for hooking me up with a great pair of matching calipers... so It looks like of the 4 Modolo Pro. calipers I'll be in possession of only a single barrel adjuster... if anyone happens to have an extra one of these kicking around I definately have a spot for it! Can't wait to get my bike on the road!