In my experience, tolerance is a bitch. I dosed 3 hits on a tuesday night and tripped face. The next week I dosed on wednesday with another 3 hits of the exact same LSD and it wasn't even half as profound as the first trip.
That is just another proof that LSD is not like other drugs. All other drugs, if you like it soo much and pop some more, more or less you'll be like the first time, but with LSD, sorry but no. Yes you can pop double dose next day and even more, but you won't get that same feelings like the first day, so why wasting good LSD. But what is more important, it is forcing you to stop for some time, ideally few weeks, and that gives you enough time to realize what you've been throught. If it wasn't like that, plenty of people would be dosed for days and actually end up "waking" up not knowing what happened to them, not mentioning profound and enlighten discoveries, there would be more abusers of drug than users. It is teaching you to use it, to use it wisely, not regularly like any other pill or similar shit, and to respect it, and most of all, to be happy with what you had (or have) without "moooooore" feeling.
I recently got some cid. It was my very first time so I cut it in half. I took the first half and decide why not take the second half about 3-5 minutes after I finished the first. I only tripped for about 5 hours. This was on thursday night. It is now Sunday night and I was wondering if I was to take the full hit if I would get the full effects or what