So I made some shatter today. I got it to shatter on 3rd run. Took a few tries to figure out how to get the purge I needed with out a vacuum pump. My problem now is I only pulled about 1 gram from an ounce and can still see a lot of crystals on my bud in the tube. I used 2 cans of butane for the pull. Did I not use enough cans? I did not grind the buds and just shoved in trim and hand broken buds. Should I be grinding my buds. Also my weed was a little on the damp side. Will dryer product produce more? Should the tube have an air tight seal on the butane bottle? I did not have that great of a grow this time but I still would expect 2 or 3 grams from an ounce right? The buds from this grow look amazing and smoke awesome. The bud in the blast tube has a lot of crystals and the product is still sticky and looks like I could still smoke it. Not that I am dumb enough to do that but...