Originally Posted by satinet
I would put the centre of the hook slot on the CG. That way you can go forwards or back from there to get a good launch.
Good winch launches don't have forward hook positions.
I think we are at crossed purposes here.
This is for a slope soaring glider and I am not using a winch. I am not after altitude by virtue of a winch and lift from the steep angle of attack but instead using rubber tubing to give me horizontal velocity followed by a steep climb once detached.
Thanks for the hint on the winch launch though. An entirely valid point for that sort of launch.