Dose - How much LSD for 3rd trip in 2 months?

[Submerged]

Recently some people tried LSD for the first time, and all I can say is wow. Great experience and definitely interested in trying it again in a few months time.

Actually, they did try it again 2 days after the first time, and while still fun, it was nowhere near as intense as the first time. Probably only had about 1/5 of the effects of the trip prior. I heard you build up tolerance to the drug very fast, would this have been the cause of the lesser trip? How long before the tolerance fades?

The big question they'd like answered though, is experienced users opinions on how much they should take for their third time in a few months (probably 2 months). The first trip caused them to see lots of blurred and moving stuff, a sort of...embossing effect like stuff moving out towards them and back in waves and stuff like a van breathing in a sense. It's hard to describe, but anyway they handled it fine, even to the point of entering a restaurant and getting a take away pizza (although this was pretty intense). Never actually saw any full on hallucinations like creatures or stuff running down walls or anything. Basically, confidence is pretty high they could handle themselves if they took 2 next time. Fairly relaxed people and are pretty sure they can handle themselves.

So, internet sages, how should they go about doing this? Will they still have any tolerance to the drug at this point? Should they take them both at once or another one 5 hours in or so? Should they expect it to be twice as intense as the first time or will it be more or less? Longer lasting?

Thanks for your opinions and advice... oh yeah, and is swimming/wading in my pool as astrociously bad an idea as I think it is?