My mother's best friend is a MUA in Hollywood and she turned me on to this Gerda Spillmann foundation....greatest stuff ever! My question is if anyone has ever used the Petite version? It's cheaper but how long does it last? I ask because their website is having a sale on it right now....

混合机　　悬臂双螺旋锥形混合机是集日本悬臂单螺旋和国内SLH双螺旋锥形混合机之优点的一种新型高效混合机 。该机可广泛应用于化工、医药、农药、化肥、染料、冶金、矿山、食品、味精、饲料等行业的固－固（即粉体与 粉体）混合、固－液（即粉体内添加液体）混合。混合机对混合物适应性强：对热敏性物料不会产生过热现象；对颗粒物料不会压溃和磨碎；对比重悬殊和粒度不同的物料 组成的混合不会发生分层离析现象；对粗粒、细粒和超细粉等各种颗粒、纤维或片状物料的混合也有较好的适应性 。