I have been rather amazed at the sales of eStim pods. They just became available for sale recently, and the sales quickly exhausted the stock-on-hand. I expected most Centipede customers would be satisfied with the four built in outputs, thereby making the ability to add more outputs not a big deal feature to them. But I guess we are not the only people out there who want more. In our own play time, we typically connect up to eight or more places on the recipient. It great to see others just as creative!