This may be present in some arts.
In Aikido, part of every warm up includes stretches that involve basically applying wrist locks to yourself.
In Wing Chun, every section of every form ends with a circling of the hand from the wrist which we call "huen sau," which is not only an applicable technique, but a marker in the form and, when done with a straight arm, thought to be of physical benefit.
Whether as a result of these things, or simply my anatomy, I tend to have very flexible arms / wrists. But, that may just be by virtue of being a skinny little 125lb guy. In any case, in regards to your training, you should go with the lock, and not fight it. And obviously, don't wait too long to tap.