I live in canada and have not been able to find the same products many people in europe or the states have been able to find.

if anyone can confirm a source i will check it out.

but in the mean time, im wondering if many screens in a concave shape will work, my GVG should arrive sometime this week  and i want to be able to try it the moment i feel appropriate

*EDIT* thanks endlessness that was a little more of what I was looking for, I believe I will try the screens, just to say I did, but I will also get my hands on some more quality herbs, thanks.

Also thanks smokerx, I already understood how the GVG and the scrubbers work, it just doesnt seem like a spiritual or traditional way of doing it.