I flew my new electrastar last week for the first time. Then two times this week end. The plane was great. I maxed out on my radio setting on the first flight. I went home and reset every thing and presto she was flying great . I am working with A trainer to learn how to fly. The first flight went great about 9 min. The second one I did the take off and flew for about 9 min at half power. I have been having a problem with the engine surging at times? If I speed up the power level all the way up then all the way down then back to were I want it the surging stops any I suggestions as to why this would happen? I am using two 3000 mah batts NMH. I am getting about 10 min of fly time at half speed any suggestions welcome. I am verey happy with this plane.[8D]