Help me understand the 630 horizontal circuit

[old_tv_nut]

If I am looking at the right schematic, the horizontal discriminator does not get any feedback back from the flyback, but only from the oscillator. If that's right, eliminating a tuning cap on the flyback or yoke probably changes the retrace speed and high voltage, but not the phasing. Phasing effects would have to come from the discriminator circuit or whatever feeds it.