When I had meow for the first time, and only time as of yet :P, I had also been smoking weed and cigarettes.
This seems to be a good combination, at least for me anyway, as the depressant effects of weed remove the comedown. Also was buzzing for 5 hours after half a gram, and felt like a really long high on mandy. Although I had smoked about a 15’s worth of weed after and inbetween the lines (not a 15’s each time, total).
Will try it some time without any other drugs so that I can work out if weed was the cause of my non comedown. 🙂