I have heard that weed from the 70s era only had ~2% THC where now at least dispensary grade can hit 20% to 25% THC. That could well be due to the drug war selecting for more powerful highs in smaller packages, but i would think that would also reduce the quantity needed to get the high you want.
Yeah, currently reducing frequency to 2-3 days a week from doing it virtually everyday for the best part of a decade. Hoping to transition to a pause after getting comfortable with the reduction.
Where I am its not legal so I have no idea on how potent it is.