b5.5dan,
Thank you for the info. I did call CZ, and spoke to a gunsmith (I believe his name was Neil). He was very helpful and gave me this advice which I will share:
Screw A= tighten to increase pressure, loosen to reduce
Screw B= tighten to decrease creep, loosen to add
Screw C= tighten to limit over-travel, loosen to allow
Set Screw= tighten to lighten set trigger
I haven't tried any of this yet, and I may not make any adjustments at all, as I like the factory settings as-is. However, I think its important to know about them. CZ put those adjusting screws there for a reason, and furthermore identified them in the
Owners Manual. If so, they should at least give instructions so that customers will be forewarned of incorrect procedures.
Footnote: as I have lived in a remote part of rural Alaska for almost 40 years, its not like I can drive down to a local gunstore
or gunsmith for advice or repairs. I appreciate the help that CZ and this forum's moderators have offered. Sometimes we must all play the part of a "novice"....