From the flight manual for the FRA150M (150 Aerobat to you and me) I fly;
"Normal take-offs are performed with flaps up. The use of 10 degree flaps will shorten the ground run approximately 10%, but this advantage is lost in the climb to a 50 foot (15m) obstacle. Therefore, the use of 10 degree flaps is reserved for minimum ground runs or for take-off from soft or rough fields with no obstacles ahead."
Pretty self-explanatory I hope. Given the book take-off distance (clean) to 50 feet at sea level ISA conditions is only 236m with a 10 kt headwind component, then it would need to be a pretty short field to justify 10 flap. However, as the landing distance from 50 feet is considerably longer than the take off distance, then I would suggest that if you can get in, then you can get out again without the need of 10 flap.
Go figure.
