Thousands of pre-filled cartridges are flooding the cannabis market right now, yet only a handful are getting top marks across the board for craftsmanship, quality and longevity. When you want to win, you bring out your strongest players, right? Well, that’s what I did with Heavy Hitters. The company boasts “the highest THC potency” on the market, and if we’re going on user experience (of which I have plenty), they’re not even lying. These carts pack a punch.