Here is a little trick I learned over the years.... You know how people like to roll joints that look "pregnant". Well in my honest opinion those are always the joints that are hard to hit, or the resin builds up at the mouthpiece and kinda "clogs" it up, if you know what I mean. So, here is a little trick I have learned to avoid the "pregnant look" and to keep the joint hitting nice all the way through. First when you put the desired amount of smoke into the paper, you want to spread it around evenly, and then, (this is my little trick) you take your index finger and put it right in the middle of the smoke and kinda seperate the smoke a little, so it makes it where there is like no smoke in the very middle of the paper....then that way you have like two little piles in the paper, you take your thumb and forefinger on each hand and just kinda roll the whole joint, with each thumb and forefinger on one of those little piles, and make sure you just keep it as straight as possible, and try to avoid pushing any of the smoke back into the middle while your rolling it, so that way you "avoid the pregnant look".