The Phase3 combines half the transponders from the 110 position and the 119 position together (I believe evens from 110, and odds from 119), and puts them on a 22kHz switch as the "on" postion. The only lnb not touched is the 101 position.
If you are aiming the 101 position at 91, the 110 at 101, and 119 at 110.. then only 91 will work fully, as 101 will have evens only, and 110 will have odds only (or vice-versa)
I also bought a Phase3 for music use, but instead gave it to my mother (who had a Phase2 dish), and took hers, since it has positions for 3 standard LNBs. I have it currently pointed at 101, 110, and 119, but I only installed LNBs for 110 and 119 for right now. (Actually listening to my Muzak right now

)
What I will do later is get a linear LNB which looks like the D* ones, and put it in the 101 position, and hopefully the small dish will actually pick it up.
Bottom line is, Try to get your hands on a Phase 2 dish instead, the eliptical dish, with the seperate LNBs.