I've seen shit microdots around, where you needed 2 to 3 for a decent (~300ug) trip.
Anyway, I got to taste some blotter going around Brisbane/Goldie last night. Normal/medium sized looking tabs, Green background, and an outline of a star in the middle of each tab. (Sorry, cannot remember the star colour). Let me tell you it was fucking shit. Just like every other tab I've munched in the past few years.
Slight patterning visuals (probably from the weed though), with slight perma-grin. Basically a tease to say "you need 3 more of these to get effects!" I would not bother. Also gave me the cracked-out eye feeling and insomnia, even after I got no effects. Very low dose of LSD, if not some degraded precursors/analogues or something. Fuck the QLD acid scene.
Edit: I forgot to add. The most intense moment on this tab was when I was forced to purge diareah out of my arsehole because of this dodgey acid. I closed ym eyes and almost got that "lost but magical" headspace you get on acid...