Hello nadeshico I own a greenstar2000 and have made frozen berry icecream by using the blank.Ive never tried making nut butters with the dual gear juicer.In order to make seed or nut milk you have to add water and I dont think a juicer will do that.I make my nut milks almond,cashew and pecan with a highpower blender.Blending milks is fast and easy unless you want to strain with a nut milk bag which takes a little more time.You can juice with a 3+hp. blender as well and I have some pics of blended goodies in the Image Gallery in the photos section under grassmans sprouts.Mastication juicers are good for juicing but they are slow and take alot of time to clean.I got my greenstar juicer at vitalityplus1.com and the web site is very infomitive and they price match.Good luck and happy shopping.Jeff.