I have a few questions about LSD if you don't mind:

For one thing how similar to P. Cubensis are they? I am very experienced with shrooms (done them about 20+ times) and never once experienced a bad trip. Evertime I do them I come out with something similar to what you have experienced... an overall appreciation for the small parts of the world (mostly nature) and also what shroom users call the "after glow". I've been wary of trying LSD mostly because so many people tell me about bad trips and flashbacks, but after seeing those videos on it I believe I now want to try.

How long do flashbacks last for, and how intense are they? Are they just as intense and long as a normal LSD trip?

And for a first time acid experience would it be possible to trip on half a tab? My friend told me to cut it in half for my first and second trips, then after I have gotten used to the experience take the entire blotter.

One more... you said you have experimented with many different psychadelics... would that include Amanita Muscaria (Fly Agaric)? If so how closely do LSD and Fly Agaric trips relate?