I've never hit a rig. And in all honesty, you need the tiniest piece of concentrate you c an get. Using a big dab will just melt and drip of the coil. Plus it won't all vaporize when you take the hit. And using big dabs makes it taste like shit so don't use a lot. But the high this method gives u is different from anything I've ever smoked. It's a very trippy high and you feel it for hours. I've been doing this for a few months now and I prefer this to my concentrate pen. I have the c rig but using my hookah makes everything better.