have a cva hawken thats only a few years younger than me, all original and still shoots perfect. I did have to replace the sear about 9-10 years ago though. Over tightening the lock screws is common and can cause the hammer to hold up, pretty much a softer wood issue. Over tightening the lock screws also can slow down the hammer fall, resulting in a click, instead of a bang.

Only issue I had with my hawken was when I found the trigger had been inletted to deeply and was hitting the sear bar, not allowing the trigger to be set. After bedding the trigger plate and tang, all was perfect. No more troubles with the tang screw loosening either with heavy loads.