i have been using lipo batts for quite long time and i have experienced all the methods but no outcome,except after coming back from flying field i will connect my used batts to my charger which is bc-8 and bring them to storage position and then put them in fridge top shelf, so this way batts never swell up, even those batts which earlier was swell en up, by keeping in fridge gets flatten, may next charge again swell up but after a regular continuous use ,storage charge and keeping in the fridge you will see the batteries swelling up, keep decreasing or may not swell any further.
so please try, hope she doesn't say NO!