Casey 1988
Shun the frumious Bandersnatch!
I think the Wraith is closer to a Teerex than the Xcal is. The few Teerexes I ever threw seemed to fly like Wraiths, but with a slightly harder fade. The XCal is a speed faster than the Teerex and a whole lot more overstable. It also glides less. Side by side I'd get much more distance out of a Teerex than an Xcal.
Xcal: 12, 4, 0, 4.
Teerex: 11, 5, -0.5, 3. Teerexes actually have a bit of high speed turn.
Xcaliber on Innova site is actually a 12,4,0,4 but the Turn to the disc limits all the glides use for Distance and rather it glides with the direction of turn at end of disc flight.
TeeRex on Innova site is actually a 11,4,0,4 which is why I asked if the disc was a Xcalilber that replaced it.