the answer is yes... you lose potency when you grind or break your weed up. thc sticks to almost anything so it sticks to what you break ur stuff up with

i dont even break my bud up. i just pull a nug or two off the main bud, pack 'em, and smoke 'em. this way only some of the THC from the outsode is lost. but on the inside... (thinking about the headrush this hit's gonna give me)

but then again... mine's sensi so i dont gotta worry about seeds. i wish i would find one tho