Here are a few differences:
- The Phantom Carbon and FV guns come with a 19mm band, instead of 16mm.
- They have a true safety, instead of a "Trigger gaurd" safety
- They have a more heavy duty line release
- The stock is much stronger, so it can handle 2 x 19mm bands if you desire
- I would say over all, just a higher quality gun, that being said I have an instinct as well and it has never let me down
Here is a video about the Phantom guns: