Cool, I noticed how you launch it underhand, have you seen how I launch it yet? I hold it right in front of the wing and throw it overhand, you might be able to get a stronger throw that way.
I am actually looking at a light weight set of retracts I have already in hand. I have a paved strip and it is a deep enough wing with plenty of fuselage space. I'll just need to keep space for the battery. This will all require a new airframe though. so my other 70mm fan may find a home over the winter.