Thermoquad Wanted

In my opinion the thermoquad is a double edge sword all its good points and bad points all lay with the Phenolic body it is good at blocking heat transfer but it isn't really that good at longevity I currently have 5 or 6 of them and every one iv ever pulled apart the body just falls into pieces. And I also agree, that if they are tuned right they kick ***. The only person I know that could tune them was my father. I never got that special knack at doing it right hence the reason mine are all sitting on the shelf.