Kinetic Combats - Which Recipe Pool are they in?

Ok, so I've been looking for a few Kinetic Combats to round out a character, thing is, their price has Skyrocketed, so buying them doesn't seem the best solution.
And after rolling about a gazillion Bronze pool recipes, I'm yet to have a single one drop.

So the question is -
Which recipe Pool are they in?
which ones in which pool?
And is there an easier way to get them?

Any help would be appreciated,
thanks

A-uncommon:
-Kinetic Combat: Accuracy/Damage
A-Rare:
-Kinetic Combat: Damage/Endurance
-Kinetic Combat: Knockdown Bonus
B:
-Kinetic Combat: Damage/Recharge
C:
-Kinetic Combat: Damage/Endurance/Recharge

KCs are not available in the 10-14 bronze roll.

KC goes from 20-35

Just to double check, what does that mean? ie Bronze, silver or gold pools in AE?
(I really don't want to use reward merits on it)

I'd been trying 30-35 Bronze rolls (so far no luck),

Had gotten a "chance for Knockdown" from a silver Roll (the only type I don't need)

Paragon wiki is your firend:
http://wiki.cohtitan.com/wiki/IO_Sets#Melee_Damage

Thanks Everyone,

Guess I've just been having extraordinaryly bad luck with the rolls (had checked the wiki, was starting to doubt it was right)

But then I'v made some nice inf on the way at least,

thanks again for the help

35-39 rolls will get you sets that cap at 35. I don't know if that's better odds than the 20-24. 35-39 gold does include the LoTG Recharge, the Miracle unique and the Numina unique, if that changes anything for you. But rolling 30-34 is about the worst of all possible worlds if you're trying for specifics. You get everything that caps at 30 AND everything that starts at 30.

I believe Bronze rolls are "uncommon pool A with 1/8 of a rare pool A".
Silver rolls, I think, are some combo of pool B with rare pool As, I don't know the odds.
Gold rolls are "rare" (was pool C and pool D, which are now combined into one pool.)