Flying Triple Weapon Attack
 

There is a DF Swashbuckler with two katanas and the Kiai skill who knows Three-Weapon Fighting (broadsword/broadsword/kiai) [6]; Chandelier Leap [10]; Jumping 18 [8]; and Flying Leap 17 [12] from Shear Speed (FL) [1]. That's an Extra Attack [25] and Broadsword +3 [12] he didn't buy so this should be good.

His in-combat standing jump is 18/8 = 2.25, increasing to 4.5 with Chandelier Leap and 13.5 with Flying Leap, but he'd better take a turn or five to Concentrate first. Out of combat and running it's up to 54 yards. Leading with the Kiai means the target may be stunned and take two triple ST (to 39 = 7d+14) attacks, all three attacks being at -2 for the FL. The CL, FL, and Kiai all cost 1 FP for 3 FP.

1) Do I have all that right?

More specifically:

2) If the target is surprised (54 yards!) then the Kiai is unnecessary. Can he have his dual weapon attack without really using one of the weapons?

3) If the character is entering an ongoing fight but hasn't been engaged, or maybe even spotted, is he "in combat" for jumping?

4) Can you combine Concentrate for FL with the running jump bonus?

5) Would Very Fit help when burning 3 FP all at once, even though it wouldn't for one at a time?

Re: Flying Triple Weapon Attack
 

A Triple Weapon Attack should probably be built as a Combination, which does require all 3. Of course, already having the Dual Weapon Attack Technique should decrease the cost of the Combination, so if you go that route you'll have the DWA as its own separate deal, allowing you to use it at full skill without the Kiai.
As for the surprise, do note that, unless I'm mistaken, you are still restricted to Move yards/sec in a jump - meaning that even if he has a Move of 10, that jump's still taking over 5 seconds. That's a lot of time for his opponent to notice and react...

"In Combat" represents the fact that you don't have time to properly prepare for the jump. If he isn't in combat (and has time to prepare) when he makes the jump, use the non-combat distances.

Very Fit works for lost FP, not spent FP, so no.

Re: Flying Triple Weapon Attack
 

You use half Jumping skill for move, so, long distance jump is 15 feet, not yards, running he goes up to 30 feet, with flying jump it's 90 feet, 30y, not 54y.

For high jump, it's 44", little better than a meter or yard. Running you go to 88", 2.44y, or 2.23m. Flying jump will put him 7y from the ground.

Re: Flying Triple Weapon Attack
 

So a combination DWA + Kiai would add another [4]? Seems reasonable.

I did forget about the jump speed limit. It's the greater of max jump distance/5 or Move, so 10.8.

On Very Fit:
I take that as saying it does apply to spent FP so that e.g. the 10 FP for Great Rage would become 5 FP. On the other hand, it does agree that FP spent in one Maneuver can't be aggragated before being divided. So you're right.


I based it on this:
DF11:34 Chandelier Leap
"You may do the math on p. B352 or simply approximate: the better of Basic Move/4 or Jumping/8 yards, doubled out of combat or with a running start, or quadrupled for both."

As an approximation it does seem pretty loose.

Re: Flying Triple Weapon Attack
 

A dual weapon 3-attack Combination costs [12] IIRC (full cost is equal to negated penalty - in this case -9 - plus number of attacks). You've paid for DWA with [5], so you've still got [7] to go, if allowing for this alternative interpretation (by RAW, you don't benefit from DWA in Combinations).

On the topic of alternative interpretation, if your character has WM/TbaM, DWA should probably drop to -3 (certainly it shouldn't be worse than a Rapid Strike) or maybe even -2, making it cost [4] or [3], while the Combination should be -6/-6/-6 or maybe even -5/-5/-5, meaning you've got [5] to go.

Sounds like maybe you can halve your FP spent on Extra Effort, but I'd still say no to chi (which CL, FL, and Kiai fall under). RAW explicitly forbids Fit/Very Fit benefiting energy burned for psi and magic, so it's up to the GM if chi falls under that same blanket. I can certainly see justification for allowing it to do so, I just probably wouldn't.