Hi... OK read it all and tbh I'm more nervous lol
The one thing I did pick up on was the SSID needs a new name - Is this still the case?
Also you said "
At this point I will test different channels for each band (and /or radio) to find the best for that specific environment.
After finding the best channel and if things are stable at this point for an extended period (at least a week), other available router options may be introduced one at a time and added to as (and if) they prove stable."
What do you mean test different channels and (sorry

) but can you explain again what you meant about waiting for at least a week?