Vasoconstriction is not the cause of the unpleasant body load from LSA or at least not the primary cause. Not to mention that there is no reason a “cold water extraction” would have any effect on the vasoconstrictive substance’s level of vasoconstriction. I also said in my previous comment it would have minimal impact on the nausea. Many psychedelics naturally produce nausea; NBOMes, mescaline, and 2C drugs to name a few.

Anyone taking LSA should do a CWE, it’s the only way that make sense. But the point of doing so is ease of dosing and removal of the nasty seed hull and plant oils that add all sorts of nausea to the already physically trying experience.

Saying doing a CWE of LSA is very similar is not accurate for all the reasons listed before, which is the only reason I jumped in. OP would be much better off searching for a legal/gray-market alternative like a LSD prodrug, other lysergamides like AL-LAD/ETH-LAD, trying other tryptamines like metocin or acetylpsilocin to see if he can avoid the undesirable effects he experiences from shrooms, or trying mescaline analogues if tryptamines just aren’t for him.

But if someone was to want to try LSA, buying HBWR is a vastly superior option to morning glory as a dose would be something like 3-8 seeds versus the hundreds you would need for morning glory. I can’t imagine it is easy to find hundreds of morning glory seeds at all, except covered in pesticide in the garden section of Walmart, while you can easily order HBWR online. Not to mention there is way less plant material to start with, making the entire process easier.