Good point, I'm travelling this week, I'll give it a try this weekend. Just did a quick search what is the minimum size of particle human finger can recognize. As it turns out, some Swedish study shows that people are able to distinguish 13nm patterns from smooth surface. There was a video posted in the other thread, of the new Thermal Grizzly shareholder - der8auer, talking with GamersNexus, and he threw 20nm as particle size - so most likely you will feel something regardless if the batch is good or bad. He also used a metric ton as unit of measurement when ordering powder, I'm pretty sure you can make a little more than 800 syringes out of it. On the other hand - he was also using Newton as units of pressure, so there is a good chance that he doesn't know what is he talking about.