My two cents: the KH6/call is better for logging programs that look at the prefix in order to populate the Country field. “KH6/call” would map to Hawaii, while “call/KH6” would map to United States of America. Also: Don’t forget you’ll need to create a new certificate if you use LOTW for this QTH and time period. Good luck! You get to do something that is still on my bucket list. I’ll watch out for you.