Hey guys it's viper!

Alright so on my new diy Cuban fiber hex tarp that I made works great although one issue is when all the tie outs are pulled tight their is a little slack basicly running along each side of the ridge line of my tarp.
I'm not sure exactly what will fix this and what won't obviously thinking a crl would help but I'm not sure in that haven't tried it yet because I have read quite a bit and some people day running a crl underneath the tarp can rub the tarp and basicly ruin it. And their are people who say it won't hurt the tarp.

Obviously I don't want to ruin my 250$tarp but I don't like the rl slack. Anyone exsperence a/thoughts on this?
(I'm using two Dutch stringers and a cord on each end of the tarp ATM)

Also while on the subject will storing my Dutch stingers on the outside of my bishop bag for my tarp will it hurt my tarp? Thanks guys!