This is a stereo flanger, based on the second episode in the 2022 ‘Bootcamp’ tutorial series from Empress Effects. Thanks to Mitch Lantz for inspiration. It has two delay lines, switchable for in-line feedback (the same delay line) or cross-line feedback (the other delay line) (The feedback is controlled by the MODE), a modulatable LFO (sine wave modulation of rate), individual feedback and balance controls, and an overall ‘Delay Time’ Offset.