I can believe Lip that joints do have the highest THC transfer rate- if they are rolled correctly that is. If you roll some loose ass joint its going to suck. Lip is saying they have the highest transfer rate because when he smokes them, when he is just holding the joint in his hand there isnt a bunch of smoke coming off it like a cigarette would. Which probobly means if you smoke outside and the wind is blowing the joint would stay lit and probobly not have the highest transfer rate. It really all depends on the conditions your in.