^^That would work, but stems don't contain much THC, not sure it would be worth the trouble. The LSA and 2c-i will probably overwhelm the THC high anyway. I would be more worried about how the LSA stores than the 2c-i, it's a fairly unstable molecule, and also a water solution might contain enough plant material to end up molding. An alcohol solution in the fridge should be stable for a few months at least. I was suprized to learn my source for plant trips doesn't carry HBW, so I can't help with that. What dose of seeds/2c-i are you planning?