Not sure about LSD, so take this with a grain of salt as it might be of no use; but the last time I shroomed, we tried this and the second day was exponentially better than the first.
Day 1 - 1.7g Liberty Caps, dry, cut in to small pieces, chewed/swallowed w/ OJ. Solid level 2.5/3 trip consistent with this dose/caps for months now. Good visuals with good body buzz. Some pattering but more HD vision along with body tripping.
Day 2 - 2.0g of same. Trip went from a 2.5/3 to a very strong 3/4. Very strong visuals and ego splitting, time distortions, objects completely morphing that weren't experienced the prior day. Visuals went from HD to black/white to kaleidoscope, absolutely great.
The second day was just a slightly larger dose of the same batch of shrooms. Didn't think it would be nearly as good as it was and to this day has been my best trip to date.