Seems rather strange to have two 21/21 GLH tournaments set up within a few days of each other, particulary as there were only 3 entrants to the May tournament before the June tournament was set up.
Good grief! An old-style ICCF game by snail mail between, say, me & someone in deepest Russia under the old Soviet regime would have been quicker. As its extreme here, a game will take five years to complete. That's too long 🙄
I managed to finish one in little over a year. It depends on what sort of opponents you have, you might well get one who can drag a single round on for several years.