Here is neat report on the GUNFIGHTER that I found interesting/useful. I especially like the discussion about the best arm to use for launch. I still can't see the need for full throttle, hard hand launching that is recommended though. ParkZone P-51D PL Mustang
Well, here is my little contribution.
I am extremely right handed, which means anything I am going to throw gets launched from my right hand. Left handed throws can go literally anywhere! My wife, however, is able to use her left hand for all sorts of things, including fine work, so individual people differ. Also I fly mode 1 (ailerons and throttle on right stick; elevator and rudder on left stick) so getting the hand back to the transmitter is slightly different compared to mode 2 flyers.
Once I splatted my Mustang on launch, because there wasn't true airspeed over the control surfaces. I threw the model, quite weakly, and although the elevator was under my left thumb it was not operational through lack of air - and the ground arrived before my right hand got onto the ailerons. No damage was done and the model was in the air ten seconds later, courtesy of a short run and hard throw.
And why not use full throttle? I don't think I could measure the extra flight time I would gain from using medium throttle for launch, compared to using full throttle and reducing to medium throttle once stable flight is established. I like that eager tug at my right hand before the plane takes to the air - big grin at the memory of it! [The forecast for tomorrow is good, so I should be out flying the Gunfighter again! Even more big grins!!]
Have fun everyone, no matter how you launch.