You and Zebras are probably right. The following Applied Hearing Solutions YouTube video shows one of Dr. Cliff’s audi associates putting a cleaning brush through one microphone port to the other on a Paradise HA body (probably not recommended!): https://youtu.be/xBt0mY-dGRA?t=141
I watched that video in October and I also be surprised by advice by brushing through mic holes. However, in yesterday AudiologyOnline webinar about new I saw that picture:

Perhaps brushing isn’t as bad as we think.
First, the Infinio line is better than the Lumity’s because it has the far more powerful New Era chip for basic audio processing (the separate DeepSonic chip does the Spheric noise reduction).
So this is what I have though about. More processing power - probably more fidelity to sound output waves (more similar to analog wave? I suppose, I know nothing about sampling rate in Infinios).
I was already aware of the improved Bluetooth and battery - I was just wondering about the sound quality in quiet situations, as I thought there was little to improve in this environment compared to older (apart from the Speech Enhancer, which I already have on my Paradise and have maxed it out to 20 units).
EDIT:
Infinio users find increased comfort while maintaining speech clarity, noise is less intrusive, and the overall sound is preferred relative to APD 2.0 (used in the Lumitys). If you combine the black no difference bars with the green for each test, the number of users who find the Infinio sound equal to or better than the APD 2.0 sound is really much larger than the number who prefer 2.0 over 3.0.
I appreciate you mentioning 3.0. However, I’d prefer to use or even NAL-NL3, which may be released soon, as they’re more tested and probably more compatible with (YMMV). Currently I have NAL-NL2 in my Paradise.
You’re ignoring this member’s posts.
-10dB thresholds across the board.