while i do feel different from strong vs weak bud, i don't know how much i feel different from one strain to the next, and i rotate through a lot of strains each year.
Smoke more = lasts longer, lol. Though udnerstanding dynamics of saturation level and rate of metabolization and such would play a role.
oh, you could destroy your metabolism... slow that down and you'll stay higher longer, i'd wager... just be a sloth and eat a lot of processed food?