I bought my first Predator in 1991, 5/16 X 14 joint, no serial #, I believe all American made, or maybe American -Canadian? I used this cue with the original shaft as a break cue for about a year. A few years ago a little rattle developed in the shaft. I sent it off to Predator and they told me that a small piece of glue came loose in the shaft. They fixed it and replaced the tip ferrule (with my choice of tips) and returned it to me. All done as warranty work. So about 23 years and still playin'.
That being said, a buddy of mine started useing a 314-2 about a year ago. He showed it to me at the pool hall on Tuesday night, it had about a 3" crack from the ferrule up the shaft, like the glue had come out of th e seam between 2 of the pie pieces. I asked him if it had ever got wet or anything like that, it hadn't. The shaft had been treated normally.
So I guess they're like anything else, good and bad