That's the wierd thing I never stir. I was always told that stirring is not necessary with mv1. I'm gonna try a different grind, I currently use a coarse grind from a budget shredder. My mighty came with a plastic shredder that shreds more fine gonna see what that does.
I followed all the advice from this forum for the mv1,
1) course or medium grind
2) long and slow draw speed
3) make sure no air leaks push cooling system down, make sure door is closed properly
4) do not tamp too much
5) loose pack not tight pack
6) make sure lid for crucible is on properly
7) male sure battery is fully charged
8) let herb air dry some before use
9) mouth piece is about half way out
10) make sure crucibles and lids are clean
It true when the mv1 is working it is the very best vaporizer but when it's not working, it's one of the worst. I just tried to use now nothing no vapor, its tunneling again. So I had to go to one of back ups.
1) course or medium grind - coarse grind the way to go
2) long and slow draw speed - i actually wait 3 more seconds before drawing, after its ready, 15 second draw a little long for me
3) make sure no air leaks push cooling system down, make sure door is closed properly - a lot of people dont put back the heatsink back correctly, causing air to leak
4) do not tamp too much - put herbs inside till it fills up and scrap off excess
5) loose pack not tight pack
6) make sure lid for crucible is on properly - make sure no buds around the edges, i even clean the crucibles every use with water soap then alcohol, buds inbetween lid and crucible is no good, also there is excess oil in the lids holes, the cleaner it is the better
7) male sure battery is fully charged - battery fully charged performance seems better than a battery thats been thru a few crucibles already
8) let herb air dry some before use - dont really need to airdry it unless its too wet
9) mouth piece is about half way out - i pull halfway out but i put my lips at the base of the hole where mouthpiece comes out, tighter pull
10) make sure crucibles and lids are clean - 100%, when u put on the lid it should sit flush on crucible
If effects not as good as before, do a full clean of the heatsink, crucibles, mouthpiece, and used fully charge battery with coarse grind
Inhale 12 seconds, then expand lung to max, hold for 20 seconds then exhale in a room with windows and doors closed, repeat
I recommend vaping once a day, or once every two days