Wait, which co poly stretches less than any fluorocarbon? Is that even possible? Every co poly I've ever used stretches way more than the likes of Toray, Shooter, or the like. Even more so than Sniper. Invivx is a whole different story, but across the board I have to disagree.

6-8lb trilene XL. I'm old school

You have to go with a 10lb braid mainline. You'll save yourself so many line mgmt headaches. It casts farther easier, and line twist doesn't affect braid. You can double uni to a 4-8 lb Invizx leader no problem.