I did a search on this and did not find anything. I know loads of people have used TTS but is the power vision is it so unpopular or in a different catogory of tuner and not a many stay tuner for the 110 engine
The Power Vision is a relative newcomer, so there are a lot fewer users versus the old standby's like SEPST and TTS MasterTune. I know I've seen several threads recently where people have talked about the PV, perhaps you need to refine your search a bit to find them.
What do you want to do with a tuning solution, install a canned map and make your own tweaks, or have a professional tuner do a full dyno tune? If you are looking for a professional tune, you really should discuss the choice of device and software package with the guy you plan to hire to do the tuning. With the prices of these different products, it's a real pain in the pocket book if you have to buy another device because the best tuner in the area doesn't use the one you already have.
Jerry
Here's one thread on the PV:
http://www.cvoharley.com/smf/index.php?topic=80558.0