ujamerstand had his university make up some of my version of the stax jacks, maybe he is willing to sell a few. I have 3 of the 6 pin teflon versions that i make left, i'm not going to make any more jacks this year due to lack of time. You could always plug the center pin with an appropriate teflon rod if you wish. Someone needs to organize a group buy and find someone in china to make a large batch of them, with REAL teflon.