I'd go for braid if your after maximum capacity on your spool, although I'm not sure whether the Penn Spinfishers are braid-friendly so you might wanna check. I use a Penn 560 Live liner for Mulloway and sometimes the braid gets caught in the line roller so I switched to mono just for that reel. Also if it gets caught in the line roller it can do damage to your braid.Nothing wrong with mono if your chasing Mulloway, its not like you have to feel every little nibble cuz we all know Mulloway just smashes it and go.Platypus is good yea and I personally use Daiwa Sealine lol old school but I love