Javier, please let me know how you like landing with flaps. I have also considered putting a small servo out on each wing so I could have flaps. Currently, I tend to bounce when landing and I need 500 feet (160ish meters) and usually run off the end of our 500' runway. Perhaps flaps would help. I had flaps on the Multiplex Cargo plane and found that I could land better without them. Maybe I should not have used full flaps. Anyway let me know if it lands more easily!

I had two large 3 cell packs in parallel in the magister and further towards the nose the last time I tried a roll. Very nose heavy. when I got upside down I ran it right into the ground pretty hard. It survived and really had very little damage at all. Bent the shaft coming out of the gearbox so I needed a new one. Found motor and gearbox combo for $38. Also broke one of the plastic wing retainer pieces that sit on top of the wing. Can't find one anywhere so I just glued it back together and put an 1/8" flat piece of balsa on the back. Flies just fine.

Carl