Mike/MO
Your clicking was the need of thin pad on one or both of the faces on the riser. My son and I have had conextions on our bows for over seven years now and have yet to have a problem.
I understand that you think you used minimal amount of twisting presure on the screws, however the strength is there with 6 screws holding the Conexion on the bow. Unfortunatly you cannot tighten something that is already as tight as it can get.
I know of many other systems out there that have come and gone or have been found out to not be as good once they are made in larger runs in more cost effective manner. The sleeve and the Conextion are still the most populer and the best in my opinion.
To be very blunt, both the St. Charles Sleeve and Conexion/New moon hinge patents date back before the turn of the 19th Century and to that end prove that they have passed the test of time, think of 19th Century metals and screws my friend. All systems will fail sometimes.
JMHO