Hex on the TeeRex?

So, is there a hex on the Innova TeeRex? Here's a little snippet from Dave Dunipace on the PDGA Message Board

"It is a complicated story starting with the original TeeRex. We had two tops originally and we didn't know one was bad. It was supposed to be a duplicate of the original. So there were some good and some not so good TeeRexes. I had another top made to fix the problem. It didn't, for some unknown reason. We used an X type bevel which helped, but wasn't entirely satisfactory either. These were the only real TeeRex X. We made a fourth top which fixed the problem. Some of these were referred to as Xes, but they weren't. They were just Xtra stable. We no longer use the X bevel, but we do use the enhanced top. In the future, we will use the enhanced stability method to make sure the TeeRexes don't turn over. The TeeRex has to have the most complicated short history of any disc we have ever produced. We are getting it right now. "

We don't sell a lot of TeeRexes but I thought those of you who do throw them would like to know this bit of information. If I hear anything else about them I'll post here.