I don't really have a perfected method, but...
465F, max temp, full bowl lightly tamped down (not compressed). Hold the button until the buzz, keep holding it, draw long and reasonably fast deep into the lungs, hold 3, exhale slow. Your inhale speed regulates the temp a bit. You can always slow down or speed up as needed to hit the cloud you want.
That'll cash the oven pretty quickly. 2-3 hits if you've got the lung capacity. 4 gets your ABV closer to coffee grounds. Works well through glass. First hit is tasty and great, second and third hit are going to be much cloudier and a bit harsher.
I also really enjoy low temp use. Throw a loose bowl (or even 3/4th of a bowl) of high quality flower in there and set it to the lowest possible temp (try the lowest setting, but at worst try to keep it under 300F). Same basic trick - just hold the button till it buzzes and keep holding it as you draw. This time, hold them in a bit longer. Maybe to a 4-5 count, then a soft slow exhale. It won't seem like you're getting much vapor, but after 5-10 draws like this I get a nice airy light and creative feeling that washes over me. The ABV will be barely golden as you go, but it gets a bit more toasted if you do these draws in fairly rapid succession. You won't get the heavy effects that come from higher temp. It's smooth as butter, no coughing, and generally feels great... and if you REALLY want the rest of the effects before you empty that bowl, you can always crank it up and do a 465F hit at the end as I described above.
All of that said... doing basic temp-steps and going from 340 to 420 or so also works nicely. Just start at 340, do 2-3 good on-demand hits... move to 380, do 2-3 more, then jump to 420 and finish things up.