I won't speak too much on my feelings on the Gals. . . It's a touchy subject as we can see here. However, I do think they are still very dominant, and with good reason. People can point to the walls, and I'll agree, but the real problem area, in my eyes at least, is the fact it's a 2 shot kill with 0 damage up investment. Hell, with 1 defense up main, you need literally 1 damage up sub to counter act it (this is the .52 of course), so the gal needs VERY minimal investment where as the other player has to dedicate a set to net the 3HKO, and 2 sets + 1 sub (1 main + 4 subs) to counter 1 damage main. If anything, I feel it should have to suffer some invested slots to snag that 2HKO. I mean, yea, we can say "it's inaccurate" all day, but the truth is it's not Sploosh inaccurate. You have a VERY likely chance of getting your kill before they get theirs (weapon dependent of course, but this is a close - mid range weapon, so I'm racking it up against other close - mid range weapons), because its fire rate is still fast (still talking about the .52) and its got such insane power. So, I feel, much like the ELiter did before, it should receive a nerf in the damage aspect where you have to invest more damage up to get what you do now. Not asking for an across the board 3HKO regardless of damage up investment like most weapons, I just think you should have to try to get that 2HKO instead of just get it and force everyone else to either deal with it, or over prepare for the instance you run into a .52 Gal with 1 damage up main.
It's just silly to me, but perhaps that's just me.
With that, I think the Hydra needs more range, not too much, but it can use the range. It's fine where it is, despite what a lot of people will say, but I wouldn't be upset if they gave it more range. At least enough to out range the Splatterscopes ;).
And maybe the Inkbrushes, but that's just because they don't see much use. Not sure what they could do to make them better, but I'd love it if they did it lol.