***Warning: Lengthy explanation of me trying to make a point and voting for the reduction of the overall damage of Tracking because it seems like it's not going to be lowered.***
With or without cast time the damage is still way over the roof.
Let's see... Why are these skills made to be in a forced neutral state (can't be converted to any element): Asura Strike, Acid Bomb, Martyr's Reckoning, Final Strike etc.
It's because they naturally deal a great amount of damage and thank goodness for Ghostring and Raydric (let's face it, you put these on as default most of the time because those skills above are usually what you face in the battlefield) we can deal with all these with ease. But then here comes the Gunslinger which with its presence alone will make you want to switch to "counter gear" even before it shoots a bullet.
650% damage increase to a skill that already deals great damage even without ring benefits, and you can convert to another element by using another bullet property is not balanced at all.
Some examples of skills that can be converted to another element for it to deal actual damage against GR + Raydrics:
Cart Termination
Mammonite
Sonic Blow
Bowling Bash
None of these skills are comparable to Guardian Tracking in terms of current damage. It completely overshadows all of those by a great, great, margin.
Okay time for scenarios:
TEAM FIGHT: You face against a party with a Champion, a Bio, a Paladin, a Ninja, a Sniper (meh) and whatnot. Ah, you can deal with this, with your own team because it's the usual. But then comes a Guardian Gunslinger and joins the opposing team. You be like "oh shit switch to your 'counter' gear or else you surely will die from the GS". Doing so leaves you very vulnerable to the other classes trying to kill you and hoorah, you're dead from Acid Bomb or a not-even-full Asura Strike. Okay let's use Pneuma then. But you get nudged by magnum break.
"Hey, I'm a melee hitter but i need to stay in this Pneuma to keep me safe. And please cast a pneuma for me (because i don't want to bother getting or using an accessory that triggers it... or maybe i do but thats way too much of a hassle to prevent ONLY ONE CLASS from killing you with one shot) so i can walk around very slowly and very carefully until I get to my target who by the way is constantly moving away."
Yeah I was right. The presence of the current Guardian Gunslinger alone can ruin the match already without even firing that bullet yet. The only way I can see this thing becoming balanced is having the cast time and a damage that can only deal around 150 - 180 - 200k damage at maximum potential (Ship Captain, Thana, Provoke, x2, whateverthehellelseyoucanusetoincreaseitsdamage). Yes, because you need an actual team to win in a team fight, not only a Gunslinger who stands in one spot casting Tracking (and/or maybe a Paladin as a life support... so seriously, where's the strategy and teamwork here?) that currently can deal all the damage (over 300k damage) you will ever need to kill people in the average 210 - 240k HP pool.
You get hit by a 150 - 200k damage Tracking from a lone Gunslinger and you're alright, you can seed and tank that. But during a team fight, you can get hit by other attacks like asura, and acid bomb, then the 150 - 200k damage Tracking should serve as a finisher and I think that's how it should be. A finisher skill on opponents who have already lost about 1/4 of their HP from your allies' attacks.
Guardian Gunslinger players: "So that's it? We can't kill anymore (OHKO) and we now only need a team to do that?"
Give me a break... this is how we lead to the next scenario:
1 ON 1 FIGHT: Now I'll step on the Gunslinger shoes to be fair with you. So, let's fight one on one.
I cast Tracking against you and I'm using the Guardian ring with it. BLAM. That was one massive damage but you don't die. What do I do to kill you? I can't spam this Tracking skill at all because it needs to cast.
Here you go, use this another skill called FULL BUSTER.
See it as Tracking (Team Fights - because you need some people to protect you and make the first wave of damage to them while casting) and Full Buster (1vs1 Fights - because it's fast and you can manage to kill on your own).
There are 3 different kinds of rings now. And different weapons. And that means you can switch depending on the situation. And don't tell me "Not everyone has the tokens to get all those different rings and weapons". Well that is completely your choice. These Guardian rings are pricey due to the difficulty of producing them, and yet more and more people are starting to get them in a heartbeat. With the state of things I'm pretty sure every Gunslinger out there will just get the Guardian rings because of this crazy overkill potential. There's no need anymore to use other classes because in a PK server, it's all about PVP, and the best way to make mindless killing right now is going for Guardian Gunslinger.
But know this: There can never be something that wipes any class instantly in a game in just one press of a button. If there is, then you have a broken game overall.
And for heaven's sake, we can't just say "find a counter to it" all the time because there is no counter to a skill that can surely and instantly kill you, not even pneuma which requires you to stand in one spot. And not all classes have the Pneuma skill at their disposal, and there's only one card that gives you this benefit but only if it procs while youre being hit by physical attacks. What is there to proc if you're not even alive at all. Is there a headgear out there that can give you the ability to cast Pneuma? Well fill us in, but I'm pretty sure not everyone is gonna be able to have it (especially if it's from Activity Tokens...). All this struggle, just to counter ONE class... jeebus.
Lastly, yes, everyone can go GS Guardian Tracking build. And so I welcome everyone to World War Gunslinger, the RO where only "Gunslinger Lives Matter".
Rant over.