HI the flight streak was my very favorite control line plane and best handlingbuilt and flew manyin my teensam 65 now and flying RCbest tip i can give you is to launch the plane with the elevator in neutral position-so the plan can get up some air speed from the launch -then go to some up elevatorwatch the plane-not the surounding scenery-to prevent dizzy-i put a 4 oz tank in the outboard wingon the CG- to increase my flying time the wing to the inside of the circle was one wing bay longer than the wing on the outside of the circle due to the fuel tank placement- PLANE FLEW BETTER THAT WAYthe fuse was made into an airfoilthe outside of the fuse was contoured and the inside was flat-to make it an airfoil -to keep the plane out on the end of the control linesdid these things 50 years ago-then read of others doing the same A FEW YEARS AGO -never could get a fox 35 to run to my liking back thenhad a johnson 35 that was my best control line enginethe OS 25 sounds like a good choise use the larger control horn in the wingmake the mount strong -so it will not pull outi liked to use the soft cable lines in the wing of the streakuse the smaller red hand held handle -you will learn to fly on the side of the circle that keeps the control lines tight when you have some wind to deal with you will learn to count your loops as you are crossing your lines with each one you do and need to do loops in the other direction to keep the lines free ENJOY GOOD LUCK HAVE FUN TONY