I ran into a problem with the faucets mating to the shanks. I noticed it during the fit-up but knew I could take it back and they would straighten it out. Initially, I thought it was the shanks... It couldn't possibly be the Perlik faucets.... So, I took the whole lot down to Austin Home brew Supply and they ran across a note from the management that stated "There is a problem with Perlik faucets mating to short shanks". We started looking into it further and I had 7 faucets that would fit any of the 10 shanks I had and 3 faucets that would not fit any of the shanks I had. Imagine that! Perlik faucets being the problem! You could see a minor variation in the mating teeth of the offending three faucets. We went through a whole stack of faucets that they had on-hand and none of them would fit. All of the Perlik faucets they had on hand would fit any of the longer shanks but none of them would fit the short shanks. (Note: Austin Home Brew Supply put forth a lot of effort in an attempt to resolve my problem. Thanks for the effort guys! I really do appreciate it.) I eventually resolved myself to the fact that I would have to figure it out. An hour with a needle file and a Dremel tool spinning a diamond dust needle bit cleaned up the mating teeth and now those three faucets will fit any of the shanks I have.
So, if anybody else has run into this problem, it can be resolved. It's not easy, but it can be resolved.