so quick question,

probably pretty easy.

do you have to declare blades before or after you make your attack.

A) i attack, declare im using blades, i roll to hit, hit, roll d6 to deal damage

or

B) i attack, roll to hit, hit, declare blades, roll d6 to deal damage.

it sounds silly but it is actually on my mind for order.

BLADES/CLAWS/FANGS When this character is given a close combat action, you
may roll a d6 after making a successful attack roll. The result replaces this character’s
damage value, then that damage value is locked.

As W.I.T. pointed out, the answer is in the rules.

You don't have to declare that you are using BCF before making a close combat action, because BCF activates every time you make one.

You only declare whether or not you are rolling the die for your damage after you hit.

Adding to this... When you Flurry blades, Do you roll blades for both attacks? or can I keep a good blades roll from the first atk? Like I hit... get a 5 and then second atk... can i keep that 5? also the other way around. I hit, get a 1... can I re-roll for second atk?

You would roll for both attacks.

Is the second roll a must?

Like say I hit high with first atk with blades and I don't want to risk getting a low number with second atk. Can I choose not to roll for second atk and deal regular damage?

reason I bring this up it is cause what if I guy had 2 base damage with flurry blades. He atks a fig and gets high with blades and hits the fig to his second last click. I wouldn't want to roll blades and risk getting a one. lol

You don't have to roll for the second attack just like you don't have to roll for any attack with Blades, but then you will use your normal damage value.

Sum up

You could Flurry (character given CCA, BCF available)
Attack 1 hits: deal DV or roll BCF instead
Attack 2 hits: deal DV or roll BCF instead (new roll)

You could Exploit Weakness (character given CCA, BCF available)
Attack hits, deal DV or roll BCF instead. Either way = penetrating

You could make a vanilla close combat attack (still requires a CCA, straight up close combat attacks only result from other powers, like HSS. Character given CCA, BCF available)
Attack hits, deal DV or roll BCF instead

The only one I am not doing here is Quake. Quake will activate BCF but the interaction is a freaking essay.

I thought the new "locked" wording on blades changed this slightly. In otherwords after I roll a six, my DV value is locked at 6. So my second flurry attack would deal 6 automatically.

If what you are saying is correct vlad...please explain the purpose of the "locked" language in blades.

BLADES/CLAWS/FANGS When this character is given a close combat action, you
may roll a d6 after making a successful attack roll. The result replaces this character’s
damage value, then that damage value is locked.

In the second flurry attack, you make a new attack roll. The damage value is locked for one attack

If we used your basis, the damage is locked from the first roll for the game

How locking works is found on page 5 of the rulebook...

In this Flurry provides two seperate Attacks.

The locked simply means that you cannot use Perplex to modify the Damage. So if your base Damage was a 2, you couldn't Perplex, roll for BCF and rolled a 5, then add the Perplex on top of that. Similarly, if your opponent Perplexed down your base Damage to 1, and you used BCF and rolled a 4, the -1 from Perplex would not take effect, and you'd still deal 4 Damage.