I upgraded to perlick faucets and went to screw them on the shanks tonight. Two of the 4 faucets fit on any shank and the other two would not screw all the way in. When drawing liquid off of these two, it sprays everywhere. Luckily, I was drawing from a keg of StarSan not beer, but a mess nonetheless. I did a search on here and it seems this was a problem in the past. They said the teeth on the faucet didn't fit on the teeth in the shank, so they used a dremel to grind the teeth and then it worked. Well I would really prefer to not use a dremel on my brand new faucets. I attached pics of the faucet that fits and one of the one that doesn't. You can see that the faucet that sprays does not screw in all the way, there is a bit of threading showing and liquid comes out of the holes. Anyone have any suggestions.