I recently decided I needed to update my current rig setup. I did a bunch of research and read a bunch of forum posts trying to decide which nail heater combo to go with. I initially bought the Auberin RDK-200 with the flat coil heater and their Ti/Quartz hybrid nail. All of this worked like a champ for months, but for some reason I felt the need to upgrade again.I bought an InfiniTi nail from Highly Educated, and loved the base but didn't much care for Titanium, so I went back to the hybrid.I saw the D-Nail Quartz Halo one day and had to have it. I was intrigued by the WIK surface, and its design so I ordered one immediately. The day it comes, I break down and clean my rig, and set up the InfiniTi base. I feed the Halo onto the shaft and tighten down the nut till it barely engages the dish and then back it off until the dish rotates with very little friction. I fire up the heater and at 600 deg., i hear the dreadful sound of quartz cracking. I understand the thermal properties of quartz and thermal expansion so nothing on the dish was anywhere close to too tight, i was just heating it up to burn it in for a bit and get rid of anything that was on it. It is now cracked in 2 places on the center barrel. I email d-nail and send them pictures of my rig and the dish with the cracks and also a short 10 question quiz. They proceed to tell me that the fault is not with their product but with my unauthorized rig. They tell me I can get a discount on a new one whenever they come back in stock. I have quite a few quartz pieces I have collected over the years, a lot of them cheap chinese made junk, and none of them have ever failed before the first dab. I realize they are very highly regarded which is how I ended up looking at them in the first place. In my case, their product failed and instead of replacing it they blamed other equipment( which is currently heating up a cheap quarts dish) and offered to take slightly less more of my money to put it on an 'unauthorized' setup. They lost any future from me and I'm going to show that cracked out dish to all kinds of people as a symbol of their quality. oh well