@ SelfOnlyPath:
We're out on the yoga bit... 
- informative video.
There is broad agreement that chip-generated PWM / waveforms will end up being superior to our (temporary) solution.
However, let's not forget that this is software; not hardware. We work with what we know and can realistically deliver at the highest possible quality in an acceptable timeframe. Once we understand the timers a bit better, we'll simply replace that bit of code.
Eliminates wasteful research, achieves the objective, and saves standing still altogether waiting for the right solution to arrive - 