Is there a preferred screen to use for setting exposure, focus, etc with the A1? What can give me the more accurate reading, the eyepiece or the LCD screen if I do not have a monitor nearby to use? Thanks for your suggestions.

If your eyepiece and/or LCD screen are properly adjusted with color bars, you can use them as a pretty good "guesstimate" on exposure, but you need to use your zebras for more accuracy. As far as focus, I normally use the eyepiece; however, with the XH A1, I've found that the LCD is of such high resolution that under some circumstances it's easier to use it for focusing.