Just received my GVG today and it seems like it's a very good quality piece! I'm going to try stainless steel mesh first... I'm pretty much set, even ordered an arc from the UK.

One thing I'm not quite sure about yet is that when pre-heating the mesh before placing dmt on it, should the flame actually touch the mesh, or is it enough to keep the flames tip 1-2cm away from it?

In the instructions they mention don't use torch lighter with the GVG that it might crack, however people have been using the arc etc. without any cracking? As long as the glass isn't heated directly I suppose it's no problem..?