It's very much a work in progress, but right now I'm rolling with
.52 Gal Deco OR Krak-On Splat Roller (usually the Deco though)
Headgear varies, right now it's the Fake Contacts, with Special Charge Up as the main ability.
Clothing is Octoling Armor, with Ink Saver Sub as the main ability and Ink Recovery Up, Damage Up and I think Ink Saver Main as sub-abilities (I went to Spyke), but sometimes I use the Zekko Hoodie with Ninja Squid and 3 Special Saver sub-abilities (should I reroll this?)
Footwear is Blue Moto Boots, with Ink Resistance Up as the main ability.
I just like having Ink Resistance Up to deal with when I get hit and need to get out, and I love swimming behind Seekers with the Deco. On the other hand, I like dropping Squid Beakons and flinging paintwaves at people with a roller, and releasing the Kraken is always nice.
(I may update this post later when I know for sure what I'm wearing)