So what do you want to see?
IIRC, the ZT series came about because of a steel provider's error. They mistakenly ground a set of blanks to 3/16" thickness. Someone at Busse suggested that they use them to produce the knives in that thickness, and they decided to do so.
Following is the text of a message from Jerry that accompanied each ZT from the factory:
ZERO TOLERANCE SERIES
Congratulations on your purchase of one or more of the Busse Combat Zero Tolerance series knives. These knives are unique and rare in so far as there were only 400 of each model (ZTBM, ZTSH, ZTNO), and only 100 of the Zero Tolerance Satin Jacks made.
The Zero Tolerance series is a Limited Run and not a Limited Edition. Our Limited Edition knives stress final fit and finish as well as incorporate extra performance features. Our Limited Run knives, such as the Zero Tolerance series, incorporate all of the tricked out performance features of our much more expensive Limited Edition knives while at the same time focus less on the cosmetics or final finish. Some of these performance features, such as zero edge geometry and satin finish, allow for much less frictional resistance when cutting or chopping. The Limited Run knives offer an incredible value by being priced hundreds of dollars less than comparable Limited Editions.
You may note some small cosmetic flaws, such as visible grind marks and other errant marks in the steel along with some possible discoloration. None of these characteristics will affect the performance of your knife and therefore should be expected. Many more hours of hand finishing will remove these cosmetic character marks, but will also force the price to be much, much, higher.
The Zero Tolerance series is about performance and value. Many who tired to purchase these knives were too late and missed their opportunity. Congratulations on your purchase and may you enjoy using your new Zero Tolerance Limited Run Busse Combat Knife.
Sincerely, Jerry Busse
With all of the above being said about cosmetics, some of the knives manufactured last were as cosmetically pristine as any other Busse. Level of fit and finish can vary greatly, with the later ZT's being really outstanding. A pristine ZTNO from the last thirty made is a real thing of beauty. A pristine ZTSH with perfect grinds is hard to find, and I have not yet seen a truly mint ZTSJ as they have all had at least a few kydex marks.
My first real "grail" project was to accumulate a complete set of "perfect" ZT's, with perfect grinds, no kydex marks, etc. I have achieved it except that my ZTSJ has a few kydex marks.