Barracuda Studios have released a neat set of replacement mass balances for 1:32 Bf 109 kits.
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/bf-109f-g-and-k-aileron-mass-balances
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/bf-109f-g-and-k-aileron-mass-balances