Not sure what to say here; if you knew exactly what it was and you had ""tangible" and proven sciences then why still look for something else?
Apparently all is fine and everything is working well.
If however that isn’t making you feel like roses and there is a chance (slight or otherwise) that a simple SCIO test can zap some Scarlet Fever (Bio-Warfare) or an A.Vasorum then holding onto 50 bucks isn’t worth much…
As for limitations…how many out there have had their parasites identified? Both/three hands up now…
How did shroom put it; third turd…
But hey, I am only speaking from my own experience and certainly am not getting a kick back from the $50 SCIO…