I just spliced in a loop in my old Nextcast 95 as the running line was pretty beat up,no sweat as they splice easy but mine is just a loop at both ends of the head ,Airflo braid for running line and poly leader for tip's,works great.
Soon I plan on cutting back a 10/11 comp head for some Custom Cut 200 with a Miricle Braid running line as I think it would slay as a winter long line /desperado Thompson line,The Mixer Special.