OSC1 frequency stability/tuning range
OSC1's datasheet specifies frequency stability of 50 ppm and max pull range of 50 ppm. In borderline cases, the oscillator may not lock to WR (freq out of range). I would stick to the oscillators used in other WR mezzanines or pick something that has similar parameters (5ppm stability, 10ppm APR). It's also quite expensive for a 50ppm XO.