Hello all, been reading the forums for a while but first time posting. This is my first attempt at an underquilt. It is about a half uq, but really just what i had on hand...about 1.8 ripstop nylon, down from a pillow i had, and all the 1/8" shock cord i had. It has a piece of shock cord ran through the end channels and also a piece at each corner. I'm having trouble getting rid of the gap at the end. If i cinch the channel too tight, then it doesn't wrap around me because of the shortness of it. Should I add a piece of shock cord to the middle of the channel and attach it to the biner also?