The original William's Wonder description in the SSSC catalog way back in 88 or 89 was, "two people could not finish a joint."
Would love to try that again. I still remember years ago, probably 24 years ago a good buddy pulled out the Bill and man were we in Wonder.
I saw that SSSC comment, and I actually believe it.
In this particular case the joint wasn't all that big (and that was on purpose). I "could" have finished it, I just didn't want to end up totally couchlocked/non-functional so I stopped before it happened.
The first time I tried this was around '95 with a stoner pal. He managed to get a bud and told me "hey, do you want to try some Williams One Hit Wonder". Having absolutely no idea what this was, I said "sure whatever". So he rolled up a normal sized joint (no crutch. . .it was the 90s!), and he, myself and my brother quickly finished it off.
Ten minutes later, he and I were couchlocked to the point where neither one of us could do anything but sit there in a stupor for half an hour. Meanwhile, my brother (who wasn't used to smoking) literally collapsed into a heap on the floor!
Anyway, if you have any interest in growing this out, check out my grow report (link in sig below). The three pictures I posted above pretty much tell the whole story, but the rest of it also covers pretty much anything you might want know in there.
In general, and relevant to this thread, my experience has been that these sorts of strong indicas will really F you up. . .but they'll also leave you with a weed "hangover" the next day, and you also build up a tolerance pretty fast.