I have some vegetable glycerine and will be trying my hand at a tincture tomorrow. I have 2 oz trim of Afgoo and 20 grams of bud. I noticed someone was running their batch through the cycle twice for a more potent tincture. Also putting the glycerine in at the beginning of the last hour instead of at the start because it was getting too thick? Is it best that I go by the directions? Do I need to decarb? Anyone with experience with the vegetable glycerine and making a tincture?