As for the timing, this can be somewhat alleviated by moving your A/V calibration setting (1st one with the left>right target) farther to the right, but this is obviously a no-no if you're singing and have someone playing drums or guitar with you. My "actual" calibration setting is 70ms but when all I'm doing is vocals, I move it to 110ms. When I want to play drums I set it back (though one time I forgot, ask Shenron, lol). I still start a little ahead of the vocal track but it doesn't seem so far off. I was able to FC "Epic" this way and got a couple of short-lived 1st place scores on some songs that are now 2nd places. LOL
Anyway, if you or nashphx13z want to play some one-on-one vocals matches let me know.