Just done my appointment and both receivers were changed. Both are 85, one with a double dome and the other a single vented, both of which we upsized to 10mm. I did hear the crackle sound again and I think I have narrowed it down to the plastic wire which is used to keep the receiver in the ear, although now trying to reproduce the effect I had earlier (45minutes ago) with it, is not happening, so perhaps my imagination for that being the cause.
edit: just reproduced it when adjusting the aid in my ear. 90% confidence it is somehow related to the keeper wire.
The wind cut out is still a thing when driving, which can apparently be disabled, so I have requested that to be done and now a matter of testing that and seeing if there is still clipping/compression happening or not. The more important part is I need the no compression for my job, being able to hear any issue that might arise with the equipment in the office is critical.
Another follow up has been scheduled for next Friday, so we’ll see how these adjustments do over the next week or so and adjust from there.