When I began to smoke, the only weed available was the weed I grew myself. Everybody around were smoking Moroccan soapbar. As I had very little tolerance I suffered some aftereffect or hangover for about a week each time I smoked my own weed. I was still suffering one of those hangovers when I went to camping with a few friends. One of them invited me to smoke his "great and wonderful soapbar". It happened it not only didn't get me high but my hangover dissapeared suddenly. So I guess there must be something in that stuff (CBD, CBN, some type of terpenes, a combination of everything together,... I don't know) which not only don't get you high but it prevents or counteracts the high.
So I think it is not the same to be smoking all day weak or not so weak Mexicanpure sativa landrace and smoke later a good trippy Thai or a extremely good batch of Mexican or Colombian Gold, than to spend all day smoking Super Skunk or Critical, modern hybrid Mexican schwag and you suddenly smoke a powerful 100% sativa like present day good Thai or some type of good sativa genetics correctly preerved.
So I think it is not the same to be smoking all day weak or not so weak Mexicanpure sativa landrace and smoke later a good trippy Thai or a extremely good batch of Mexican or Colombian Gold, than to spend all day smoking Super Skunk or Critical, modern hybrid Mexican schwag and you suddenly smoke a powerful 100% sativa like present day good Thai or some type of good sativa genetics correctly preerved.