Use your trim tab. That's what full scale pilots do. I have a GP RV-4 with flaps. When I put them down I know I need 5-7 clicks of down trim. I use the same amount to take off. I recently bought a computer radio and will program the mix in eventually, but for now I do it the old-fashioned way.
Just had a "Duh" moment. I have the GP RV-4 with flaps, also, and struggle to get it to come down when I extend the flaps. I have an "entry level" computer radio that won't mix flaps and elevator. Never thought of just counting the number of down trim clicks needed to make it stop balooning. Thanks.
Phil