My 2 cents on F/H...ALWAYS use F/H on a large DXPedition...The reason being that the Fox (3Y0K) may hear you 1 time in the pile and add you to the Que...5 minutes later when you get to the top of the Que he's going to send you a signal report...If you stay "Non-F/H" then he has to decode your signal report from the pile-up rather than all by yourself on his RX freq...say during that 5 minutes between you going into the Que and him calling you K5UR or W5ZN or some other big gun camps out on your spot in the pile then they will never hear you...And this pile-up has thousands of people calling so it's easy to be lost for a few cycles...especially if you're -18 to begin with...Now it's not the big guns fault because he's just picking a random spot to TX from above 1000...It's more the sheer number of stations that are calling (and lots of big guns) that can make you get lost in the pile...and believe me there has never been FT8 piles this big ever so my advice is to use F/H and let the program drop your TX down on top of them "in the clear" so to speak and they will have the best chance of hearing your reply...based on their settings so far I see that after 3 attempts to copy you they will move on to the next station in the Que and you go to time-out for 20-30 minutes meaning they won't pick you up again until your time-out is over...Now sometimes it will work but on piles this big it's better to take your best odds and use F/H...

Dennis Tune W5DM