Similar to what I’ve done recently. Although because of the level of my deafness and hence the required power of my aids, turning WhistleStop completely off leaves me with far too much feedback. The Music program automatically adjusts WhistleStop to 8 but Tremolo was still evident at this setting. I found reducing it to 6 eliminated Tremolo for me and still leaves me enough feedback stopping power.
I’ve set Music as Program 1 and turned AutoSenseOS off. So my aids won’t auto select anything else but stay on the Music program which suits me. Even SoundRecover is off. Everything is off. I hate compression of any sort.