Grab a spare barrel bushing, it’s not an awful idea to face the back of it so it torques into position slightly (can also face the slide alternately)
Sometimes the tolerance stack up ends up with the bushing indexing with the guide rod plug in an untorqued condition and it can rotate slightly during recoil which leads to the fun experience of the guide rod plug then bending out the tines and causing failures.
Otherwise, loaded chamber indicator holder coming out was the other most common failure, definitely loctite it in.
97s have a decent amount of proprietary parts compared to the rest of the 75 series lines and derivatives. A spare extractor is a good idea.
Depending on age, ejector might also benefit from shortening and angling (original ejectors were a bit too long)