I have issues with both recipes. The one with water alone doesn't seem as though it would extract enough constituents. The one with isopropyl is ick...isopropyl.
I've see recipes with ether. Anyway, I might try the recipe, but substitute ethanol (Graves or Everclear) for isopropyl. Your thoughts?
I also think thr dosage is light 2-4 grams of seeds is nothing. I've eaten 1/2 ounce. Had a bit of a belly ache, but the trip was light, again that was just a water extraction.