I'm having a lot of fun with the Splattershot Jr in Splat Zones on Museum d'Alfonsino. It's a versatile weapon with plenty of mobility, and the Bubbler really helps get me out of a sticky spot.
Case in point, jumping headlong in to a Killer Wail ought to teach me a lesson, but not when I have a Bubbler ready! Running in to a Splat Bomb Rush ought to make me back off, but not when I have a Bubbler ready!
Of course, the Bubbler can't always be ready, so I need to be agile and alert. Or I can just ink more turf and make it ready. Either way, I disrupt the opposition quite well.