Sporeworks. That's the only place I get it from. Ben over at Earths Tongue is way cool, and has some great genetics on other strains. Not sure if he has PE. Sporeworks is the place for PE in my opinion. When you get your spore syringe it will actually have some living tissue in it. Most likely from the gill irrigation technique used to harvest PE's few spores. Anyways, you get a mix of spores, and live tissue. In essence you are getting a live culture instead of a spore syringe which will work Far better than a regular spore syringe anyday. Fast shipping, and good customer service.