Just curious... I finally got SPlat and was tinkering with the LL synth. I'm not sure if it was a combination of tremolo and the other effects but I have could have sworn it went about ten cents flat for a second or two. While an EP is more of a mechanical tuning process, it was not unusual for old synths to go out of tune or change tuning temporarily due to power surges. I have an old polymoog and, when it is working, the tuning changes as it warms up.
So, is it possible in the zeal for realism, some vst synth makers might model detuning?
So real that they go out of tune! lol