I am by no means an expert but I can tell you the method that works for me.

I am right handed so I hold the TX in my left hand and launch with my right. I hold the fuse from the top , just in front of the canopy and give her a good underhanded toss. I then get my right hand back to the Tx to guide her out.

There is a thread on this forum with pics that show Demon launching his warbirds.

Good Luck, Dane McGee