After working on guns for 40 + years, all I can say is reloading caused way more problems than it ever solved.
I can understand why you feel that way, you're a gunsmith so get to see all the local mishaps.
A different perspective would be:
After reloading for 4 decades, all I can say is reloading solved way more problems that is ever caused. In fact, its so easy a caveman could do it.
One reloading manual is enough if one has minimal comprehension and common sense, but more is better obviously. (I have eleven myself).