Their script-reading robot told me that data rates are only guaranteed up to 2,400 bps and that there was nothing they could do. I was very irritated with their lack of interest in my problem. They agreed to send a technician out to look at it. I insist that it sounds funny and he finally agrees to check it out on the switch side. Within an hour I was connected at 44,000 and have had consistent results ever since.
Disconnections are more common early in a session if there is a short period of inactivity.
Excellent throughput when connected. Compressed files, when connected to a fast server, can be close to connect speed. Compressed files vary wildly, as one would expect. I am overall disappointed to learn that X2 users, both in my research via the Net, and in personal experience, typically connect at higher speeds. I am contemplating switching to X2 as a result.