The 75115 comes with the production legal CZ competition hammer. If you shoot IDPA or USPSA this is important. It also doesn't appear to come with his adjustable sear?
I'm not sure why he has the "for competition use only" disclaimer on the 75115 package? I'm fairly certain that both give similar results in the end.
It must be related to the hammer hook geometry. Using his hammer and his sear probably gives more reliable/safe hammer hook engagement for his 75110 package? Maybe David will chime in and give a more definitive answer.
Cheers,
Toby
