Juicepuddle did you not see the first photo of the single screened sift? that was from nug ,, i thought it was poor quality personaly and i showed photos of the product.. its the shot with all those capitate stalks in it.. like 20% heads at best.. definitly not something i would consider super clean lol.
maybe you need to just learn a few tips.. a few things that i've noticed where people make mistakes.. is trying to clean to much.> i clean very little at time.. a half gram sometimes. If you try to clean to much at a time it becomes difficult. Also the carding i've notcied to me seems easy but the few friends i've showed recently have had a hard time getting the quality down to pure heads as well.> i've always said it truly is an artform but that doesnt mean anyone can't learn. >Just a matter of fighting those counter intuitive thought that tell you to try to extract the most.. ( big mistake the more contamiant you get the harder it will be to clean properly)and carding to fast or hard.. this will cause friction which will cause heat and this can make the heads harder to extract and clean.
You should be able to get the heads down to 90% at least with the bubblebox and higher if you take time to learn the technique's. Its not the no brainer the bubblebags and water extraction is. Great material in and folllow the instructions and pretty much get killer bubble hash in return everytime with a 99% purity of gland heads.. much much much more difficult to do with dry sift. but doesnt mean it can't be done.
I've dabbed dry sift but personaly like bubble i prefer smoking it in a bowl with my beeline.
ps thanks gauis much appreciated..
Herb is the messenger bubble is the message