I bought Mela 4 to try with EWI/breath control. I tried a basic bare-bones patch with just a saw wave routed through a lowpass filter with breath mapped to frequency. Unfortunately there is very audible “zippering” on the filter when playing this way. Here’s an example: https://photos.app.goo.gl/xx1yY6p3VumUS1j88
Please improve the filter module by making frequency sweeps smoother.