G-EMMA, like you, in the circuit was exactly where I learnt BUMFFPICHH and while training for the circuit I did do it every single time.
I have to say I am rather surprised at the bad reaction some posters have had to it, perhaps they've forgotten what it is like to be a student PPL or wrongly associate adherence to procedure with lack of judgement.
Continually checking things that do not need checking shows lack of understanding and rigid rule book mentality both have little to do with airmanship and good judgement.
llanfairpg are you an airline pilot? If you are then I find your comment slightly surprising considering that lack of SOPs is one of the reasons GA doesn't have the excellent safety record that the airlines do.