Originally Posted by
damien roe
i bought 2m just to plan the route when im fitting it will be 4m lengths of -6 or -8 when i decide what to use but at the min i think -8 feed -6 return
What makes you think that ?
IMO -6 feed and return would be more than adequate.
I'm using a -8 feed and -6 return which is ample for me.