Steve make sure you check the valve adjustments, I notice on four dtrokes it makes a big difference... Gunnaredwards, it is great to see you building a Hog!!! I have to say, i was surprised at how fast this airplane is! I like it! I cant wait to wring mine out big time, I am hoping it will hover but with the small stock rudder it will be iffy... No biggy, i didnt build it as a 3-D airplane, wrong choice for that but i do want an aerobatic airplane ad it will fill he bill for that. Steve your Bipe is looking awesome! I recomend going conservative on the CG as the elevatoer is sensitve if the CG is set to the tail heavy side... I am going to weigh mine and will let you guys know what it comes out at. I am going to get a movie of the Bipe flying if I can get a good photographer at the field.