Bill -
Hi. Not be be a kill joy, but I gave up on the ejamming application. It also happened to go to a fee based service at similar time but that is not the reason I dropped out. That service needed to install software driver shims, which I wasn't so keen on,though it did not appear to affect my computer. The setup and connection to the computer was always a problem. But as you say, delay is the main issue. I had one fairly successful interaction with a kid at a college in Ohio. That university had plenty of bandwidth and he had more problems with my relatively slow upload speed, so I did not hear much delay from him but he had more from me. We did get through a couple tunes, though. I tried with someone out in like Arizona and it did not work well at all. We both had cable modem services with relatively low upload speeds. Even though the speeds were quoted as being within the guidelines for two person use, the trans-continental delay made it awkward at best. Now unless the ejamming enterprise (or others) has paid for QoS services end to end between ISPs across the nation, I cannot understand how they would make this truly work. Perhaps they have enabled QoS and that is what you are in part paying for with the service.
I jammed with a guy in Turkey once. That was really weird and it almost, kinda worked. That was also at the infancy of the ejamming concept and not many folks were on board at that time, less than 2 dozen.
So I am interested in how it will work out for you. These are just my reflections as a network engineer and not meant to discourage you from trying. If you find a service that works, let me know. If you find a service with a trial period and you want to give it a shot, I would happily try. I am in PA and you are in NY (Westchester county? I used to live there many moons ago) so there should not be too many ISP hops in between. Of course that somewhat depends on your ISP and what tier level they are at. Mine is a tier three I believe, at least last time I checked.
All this said, I have not tried this in about 4 - 5 years. Best of luck with it and if you are intending to use it with folks local to your area, no matter what the service, you will likely have the best results.
Dave
The river keeps a talkin'