Robert - oops, I forgot where you got them. Nonetheless, they are unique, and were modded after New Thiel went to Nashville. I can speculate that New Thiel was experimenting with different internal wiring. I know they were experimenting with ultra-caps, etc. I wonder if your 2.7s have better than stock XO parts.
Dennis Crossen, the development engineer, was quite experienced and talented. I suspect that whatever you have has merit. Considering my present exploration of wire configurations, I certainly would love to learn how your 2.7s compare to stock. Can you arrange a comparison and give us a report?