Some good, some obvious, 2 I disagree, the two above the last one.
A setting that suits you after 2 months of playing might not be the best one after a year or two. Your physical abilities improve with practice and thus you might need to change them several times in the first year of playing. Just do it wisely. You should stick to one setting the moment you feel your "aiming" hand is fully trained. But even then things like resolution full screen/window settings play a role and you simply MUST experiment with it as to find the best option.
As to copying playstyles, I'm pretty sure copying some manners may be beneficial for the player's improvement. Remember, that if something is comfortable for you it doesn't mean it's the best in terms of performance in a freakin circle-clicking game. You must find the best playstyle you can in terms of pure performance, e.g. your clicking hand position should allow to keep up with any speed you're physically able to and maintain it. If an effective playstyle isn't natural or comfortable for you, just make it so via practice!
Just look at all the players who grab their mice/pens in a strange way, the same with hand position on the keyboard. Do you really think this is how they've been using keyboard and mouse since ever? (implying that any standard PC user wants to work at maximum comfort)
