Making Fluttery sleeves for the Chai Tee

Hi all, Long time no chat. Today I am making something for MEEEEEEE! All about meeee! I am making the Chai Tee. So excited to have a D cup so the girls don't bring the shirt up short! Anyways, I would like to make the sleeves a bit more fluttery. Do you think it would work if I just used the gathered sleeve method on page 55 of the BBB, mindful, of course of the need for symmetry for the double layer/fold? I am thinking about adding maybe 1-2 inches at most in the easing/gathering portion at the sleeve cap, so it flutters a bit when it falls down my arm. What says the hive sewing mind?