Okay, last point, you need to practice how you are going to hold the plane(underneath or on top) left or right hand etc., and then throw it. Make sure your hand doesn't slip or slide when winding up. Just be firm.
A suggestion: After many years, found that if you launch with the right hand and then go to aileron/elevator control. Here is what i do with the left hand. I grab the left hand and put the 4 fingers under the radio and then take the thumb and put it on the yoke so by pushing down it holds the radio as well as you are able to control the throttle from 100% to off(if it is going to crash) . So all you do is move the thumb forward or backward to change the engine speed. As you release, the right hand comes down to work aileron/elevator and the left hand shifts to cover rudder/throttle.
You will know quickly if the plane is going to make it or not when you release. It will come natural after a bunch of throws and it is always better to kill the motor if it is going in. Just my way that there is no time delay with the throttle.
Will explain to you how to reduce spooling up time which can save your edf'/plane at low speeds.
Last point, make sure you stay focused from release time to landing. Have fun !!!!!!!!!!!!!!!!!!!!!!!!!!!!
Just got my matching edf's running for my wart-hog. Now need to put them in the cowling.
I like to design and fly unique planes.