Doug,

Okay... I think I understand the concept of NCFZ. I'll get the calculator out and give it a whirl! Man, this is cool stuff!  So... just a couple of questions:

• Once I have calculated the NCFZ and translated that length into EAF focus clicks, what step size should I put into EKOS?  For example, if the NCFZ calculates to 100 steps... would you use 50?
• I understand the concept of seeing limits, but how/where do I get that measurement for a particularly night?
• Since seeing is a variable, do you change your step size every night?