Good post Harry. Much to agree with.
Except:
The only concern would be ignoring the config warning as you climb away with landing flap, something the aircraft will happily do if done correctly.
You only get the config warning whilst on the ground. Once you're airborne, you are no longer 'taking off', and hence don't get the take off config warning.
As a point of interest, because you generally don't have much accelerating to do before reaching the bug and rotating, config warning only occurs for a very few seconds.