just an update on my samsung 30t's
after charging them they have been working just fine in the guar-21, even been able to lower my watts to 18w on the profiles with .2 ohm mesh strip
so I think it was just an issue that they had been sitting for a while without being used, even though the mod showed they were fully charged I don't think that they were.
Currently used them to under half charged and they are still keeping up nicely...
as for the mod itself, yep I was right...not really waterproof as they stated...though again the board and stuff are in their own enclosed container....but I over squonked and juice went down the sides...cleaned it up but it did go inside the door of the mod to the batteries.
overall though very happy with the mod and do not regret buying 3 of them

these are much much lighter than the aegis legend, even though these take the bigger batteries.