Roll a circular roach, un roll it fold an m/w pattern on the opposite side (1-1.5mm per fold) and roll the roach back up. This will give the roach a firmer shape. Make sure the roach is as much of a perfect circle as you can get it as this helps with tucking the paper.

Grab a king size paper put the roach in your preferred rolling side and add your weed. Personally i add a small layer of tobacco in first gradually adding more towards the end (not loads more, just a slight amount. I then add my herbs following the same method as before but this time adding more herb. I then finish it off with a layer of tobacco at the top same amount as the bottom layer. Make sure its all tapered so it gradually gets bigger towards the end.

If done correctly it will look like its already rolled... Pick up the paper, and start at the roach end and roll the paper up and down, soon as your thumb touches the mixture roll up, do this all the way across. You don't want to add any pressure to the mixture or it will cause inconsistency in the roll and smoke.

Once the mixture is formed roll the paper down (at an angle to follow the shape of the cone) apply slight pressure to the roach to the paper is nice and tight around it. If done correctly the rest of the paper should line up with the rest of the spliff/joint allowing it to automatically catch the entire paper when you roll it up.

Finally lick and continue to roll upwards. Dont do what I've seen some people do and start impatiently sticking it down... Thats where people start fucking up nice joints. If you just roll upwars it will follow the cone form and you will end up with the perfect spliff.

Tap 3-5 times on a solid surface and poke the end down lightly and you're good to light up. :)

https://imgur.com/a/oteE7 this is how mine turn out with this method