So does a Kibler fall into the mass production bucket?
Not millions, maybe batch or one off produced.
With the exception of a few quirks in the "mass" commercial products.
The biggest problem I see is the owners failure to understand how his muzzle loader operates.
From cleaning,load development,sight regulation & the inability to be consistent.
When I was shooting TC,CVA,Lyman guns,I can guarantee that mine were not like the others.
May have looked basically the same.
Custom anything IMPO is taking an idea and modifying it fit my requirements.
The next shoot you attend observe who all has the same gun. Then look at the problems each one has while shooting.
OR
You can just read threads on this forum and identify the same problems over and over .
Is it machine or man?