Inkstrike is ridiculously overrated and only covers a small point of the map which can be quickly recovered in your own ink, Echolocator does a much better job at making your opponents panic, since they can't just hide. Also, Inkzooka is a joke, you'd think it'd cover more distance than that. The Seeker of the MG is only useful to have a small lead in your ink spraying because it's honestly bad at targeting people, and the Ink Mine can be good, but only under some circumstances, like on slopes where the enemy doesn't see it flash before the explosion. On flat ground it's pointless.I don't think the N-Zap '85 can use Inkstrike/Inkzooka very effectively (if at all). Not to mention the subs either. It's not all about the main weapon :p
I'm saying the N-Zap is better because I've almost exclusively been using the Aerosprays, so I want to say I know what I'm talking about.