Splat Bombs explode sooner than Suction Bombs. That makes a difference in the first few seconds of this Rainmaker battle in Port Mackerel. It doesn't quite stop me getting splatted, though.
The Rainmaker is picked up and dropping immediately, and then left alone, for reasons unknown. I blast a path with the Inkzooka, and see the opportunity to carry the Rainmaker a good distance, so do that.
I get splatted, obviously, but my squidmates are right behind me by that point. They control the turf, burst the Rainmaker, and take it the last few yards, right up to dunk it on the podium. Woomy!