so i have this backwards? i thought 150 were the larger holes and like 40 were the smaller holes. therefor catching everything in between the 2 screens. ill have to look it up again i guess. it will be a couple of weeks before i get to try it any way. thanks again. i dont have any expierience with the exotics, just smoked some black hash a couple of times. the article did say to dry your bubble very well, like a week or something to make it crumbly.