Collective/Rudder mix on the 250 with a BeastX is a must - I think they call it Revo/Mix - rep F in the Parameter menu. I added it and it made a *world* of difference. You need the software version 3.0 for it to work. You can get the BeastX to fit if you put it between the motor and the tail servo.
mike
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Goblin 770, Goblin Nitro, Goblin 420 Many come and gone but all V-bar'ed!
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