Just finished watching Shugs video on underquilts and he mentioned to make sure to snug up UQ so it is up against your butt for maximum warmth. When I am laying in the hammock and cinch up suspension to where I slip my hand under me between hammock and UQ to where it is almost touching my butt now it has started to pull the ends of the hammock together where there is slack in the ridge line and sagging. Where am I going wrong here?