Welcome to the Mojo club.
As one of the posters who have followed this thread for over two years, your experience mirrors many other mojo owners. In the early days of this thread, there were many posts by mojo owners, describing how they read the posts/publicity about mojo, and went along to dealers curious to hear the mojo, but not expecting it to replace their existing dac solution. Most of those posts ended with them saying that they left the demo, either with a mojo, or with one on order. Normally people know very quickly that the mojo is a step up, and special.
@Mython tried to capture a lot of the best practice for using Mojo in the FAQ in post #3, granted the subsequent change in Head-Fi platform makes some of the info harder to access, but there are several long-term posters who will be happy to try and answer any questions that you may have.
Regarding Jitterbug, Rob Watts posted that although it doesn't reduce jitter, it can reduce electrical noise, so can be considered a cost effective improvement.
For myself, i found that adding a ferrite choke removed much of the electrical noise, but there are interesting posts on the other chord threads about using multiple ferrite chokes, each tuned to a different frequency band.
Please feel free to ask any other questions that you have, because hopefully we can provide an answer.