2.3.0[2] addresses a few bugs, and adds some new scales to Diatonic and Quadvox, but should not affect the tracking. You can check out the release notes on the Support page for Pitchfactor for the details of this release.
On the whole, however, Harmodulator and Pitchflex may track better for faster runs than Diatonic or Quadvox, especially with the aforementioned tips.
