There was a thread (link below, at the end of post #40 from Neville) where the OP was making comments that the More has a more natural sound than the Phonak P90, and a debate ensued, with some argument that with the right HCP who knows what they’re doing, the HCP should be able to make adjustment to the HA to make it sound like another HA of another brand/model. Neville (one of our 2 frequent HCPs on this form who are very respected) said that give him a quiet hour, and he bets that he can make the More sound like the Phonak Pico Forte, but just the basic sound, not counting things like the automatic features or performance in noise.
So maybe there’s hope that your Whisper HCP can try to tune the Whisper to sound more like the More for you, if that’s what you want. There’s nothing to lose but to ask the Whisper HCP to try for you. But I had a debate with Neville about whether you want to keep copying the sound quality of another HA brand and model forever or not? It just doesn’t seem sustainable if it has to take a quiet hour each time there’s a major update that erases the previous work and requires the matching to be redone.