What I've found is that with a proper purge with no heat or low heat, your concentrate will turn into a powder. I believe this is due to the alignment of the molecular structure allows it to be crystalline. Pressing ur powder as i described before essentially just gathers the powder into one chunk and because the powder is just crystals it will solidify as one chunk of shatter. I've found my sappy consistency is usually from a too short of purge, too hot of purge or just the material is naturally sappy. Usually older material will be more sappy.