You will likely see a nice improvement from the Mystik green with this Traveller grease. I attached a link to the tech data sheet(yes it's the same product).
https://kynetxproducts.com/wp-content/uploads/2015/05/KYNETX-TDS_MD-LXM27.pdf
If it still on sale for 2.50, it's a good deal(i.e just one sock). Not a bearing grease I would recommend, so not a "just one grease" candidate, but fine for everything else (pins, u-joints, driveshafts etc.) Just watch the stains, it's on a whole new level with moly.
PS Water washout is not just about operating in water (or hurricanes), it can also help gauge the grease's ability to "stick" and stay in place. If a steady stream of hot water can't displace it, it's probably going to hold on just fine in dry usage.