I looked at all 3 places.
Not familiar with these UGL's, cause I'm not able to do them all.
So if I don't know of someone who's done them, they are Off my Radar.
Sorry, can't offer an opinion on any, other than to say, I'd stick with either Approved Sources.
Or somewhere where you know someone that did the Product and ran Bloodwork.
Don't ever take someone's word for something, that you don't know Personally.................... JP