I'm trying to make due with what I have right now which is a ENO DN with slap strap pro's. I've used it quite a bit for napping for a few years and the straps don't stretch much with me at 160 lbs. I'm trying to add a SRL to see how I like it. I've made one with 3mm accessory cord using a tautline hitch for adjustments. Should the SRL always be really tight or would it just be snug if I have the straps set just right?