Its -possible- to get a stack of these a day from digging. I doubt two, but maybe. I beleive the RMT lock down on this comes from Sahagin. There are Bots in West Altepa... but only 2-3, nowhere near enough to put up the amount stacks that pop up every day or two......But the people with strange names putting up 3-4 stacks a day just scream RMT. (Turbulence is my mule)
Since i would like to see the price on these plummet. You can obtain these easily by Clamming at Purrogo Island in Bibiki Bay. I get about 6/Hour and it cost nearly nothing to Clam
I've gotten this twice from the Sahagin Beastmen Treasure quest (out of three total tries). Given the effort involved, though, it's probably not the most effective method of obtaining.
Delta Sahagin
Shore Sahagin
Lagoon Sahagin
Coastal Sahagin
Mamool Ja Frogman
Overlord Bakgodek drop this item
droprate is very low on it from the Sahagins ;; GL on farming!