Power up!! and some questions :P

Hi people! I want to ask you some tips for my set!
My current set is:
<< Head >>
<< Body >>
<< Shield >>
Grey Owlite Shield - (Uv Poison def Low)
<< Weapons >>
Sword >> Combuster - (Uv Atk Speed Low)
Sword >> Obsidian Edge - (Uv Jelly dmg Low)
Bomb >> Shivermist Buster - (Uv Construct dmg Low)
Bomb >> Electron Charge
Bomb >> Dark Briar Barrage
Pistol >> Antigua
Pistol >> Autogun - (Uv Atk Speed Low)
Note: I use only two per lvl.
I should use the wolver coat to made a Vog Cub coat or a Snarby? (For Vana, you know.)
I like to be a "support" in Vana runs, i always pick the Shiver and try to make the run more easy... this "job" is useful? or just pick a Blitz / Agent P. and shoot? (I feel pretty useless in the last stage of vana :c)
When you pick a weapon using seals, like a "Antigua", it can come with Uvs? I know if you craft, there can be a chance, but if you pick it using seals?
Thats all, sorry if my english is "robotic style", its isn't my original language xD
There is more life in Raccoon city, than in the spanish forums ._.
My Nickname: Fede-Steam

- If it's just for Vana, Vog Cub is better defensive (because of fire resistance) while Snarby will be a little better offensive. (depending on who you ask. Attack speed is cool too, offensive-wise). If you ever wish to play Lockdown, note that the shadow UV will be completely worthless on a vog coat, and that vog coats are not preferred in Lockdown anyway.
- It is entirely possible to use Shiver in Vana's final stage. It has the range to freeze Vana + one slag guard at the same time. Shivermisters are often heartily welcome in Vana runs provided they don't overuse the weapon in the rest of the run. That being said, there can never be enough Blitzers with Vana. At some point, you might end up finding it boring to Shiver Vana, and want to pick up a Blitz both to finish the fight faster, and for the slight added challenge. Also that being said, have you considered full time bombing? It's fun!
- Weapon gained from tokens do not have UVs when obtaining them. They can, however, gain UVs as you upgrade them. The cheapest way to obtain UVs on seal weapons is generally to Punch them. You can also find unbound token weapons at the auction house with UVs.

Since you seem to be some kind of sword hybrid, you might find my detailed sword guide valuable. It covers armor decisions such as Vog Cub vs. Snarbolax. But Sir-Pandabear is right.
Freezing Vanaduke is generally helpful, especially if your party is not full of experts. If your party is full of experts, then their attitude will probably be "It's okay that he's freezing, but we'd finish this fight faster if he were Blitzing." If you feel useless freezing, then use your time to kill slags or put out fires.
And don't freeze much in the rest of Firestorm Citadel. Use your time to inflict damage instead. And don't bother with Argent Peacemaker. If you're going to shoot Vanaduke with something other than an autogun, then go for an alchemer or a magnus. (But yes, many guns work.)
Sir-Pandabear answered your third question thoroughly.
Your English is good. Enjoy the game. :)

Thank you very much for your answers gentlemen, i will wait until i can buy the key for the shadow lair, Snarby will be more useful in general.
I committed that mistake, all the time be freezing in FSC. Guess I should join some guild... it is not easy to find people with decent equipment for Vana.
Bopp, your guide is awesome. -3-
I will try to use the Blitz, I do not like it because it makes me feel quite fragile, but I think it is a matter of time,than can be because i never used guns util this day xD

You're welcome for the answers. And I'm glad that you found my guide helpful.
Blitz takes some practice. You are vulnerable to enemies while recovering from the charge attack. So you have to know the enemy AI (artificial intelligence) well. ASI (attack speed increase) helps.
Good luck finding friends/guildmates for FSC.