I'm British and have worked in the US so I've used most if not all of these forms. I'm not sure why the British one feels more logical to you, but I don't feel

I'm British and have worked in the US so I've used most if not all of these forms. I'm not sure why the British one feels more logical to you, but I don't feel strongly drawn to either so probably it's more about familiarity. > Plus, the word 'parentheses' is a mouthful :-) There's a certain flow to the term "parenthetical" that I enjoy too! Alas I am entirely too parenthetic in my own writing and thus spend an annoying amount of time eliding the parentheticals :)