Yep stack 8 times. With 6/9 skills spent in flow capacitors it drains 2 power per weapon cycle from each of enemies sub systems and adds it to mine. This is in STF so insulators would likely lower the effect but by only 50% of the effect that would apply to regular drains (see latest patch notes).
I equipped a flow console (+24) just to see the stat difference and it went from 2 leech to 2.3 leech.
Used to be just 1 leech with no skills iirc.
So with no skills or flow capacitor bonuses it'll give +8 power to each subsystem.
With 6/9 skill points only, it'll yield +16 to each.
With extra +24 console it'd be +18.4
That's all with no insulator resists.
I'm a bit dubious about weapon power drain, was going to do some further testing and post something, but it seems that if I have power set to say 85 and after warp core potential and efficiency bonuses plus active stacked plasmonic my weapons power is 124 and it bottoms out when all 6 beams firing at about say 68. But if I set power to 100 and gain 1 extra weapons power point theoretically (to 125) my weapons power only bottoms out in the mid/high 70's.
Quite the difference with only 1 point power difference theoretically. Could be bug or something else I don't know about/understand.
But yeah, this console is a standard part of my KDF builds now. Very nice indeed.
I bought the console, and in case anyone else has questions about it, here's some more info.
It drains 1 energy by default per stack, and with 9/9 Flow Capacitors, it gives just slightly more than 2 energy per stack. With a full 8 stacks up, I was getting +17 energy to all subsystems.
It adds one stack every time a weapon begins its firing sequence, but not every time it's animated as firing a shot, so for example if you have a turret or cannon that shoots 2-3 bullets a second the buff/debuff will only be applied once per second instead of once per bullet.
Each application of the buff/debuff has its own 15 second timer, so if you applied 3 stacks 4 seconds apart & then stopped firing the effect would go down to 2 stacks in 4 second, then 1 stack in 8 seconds, and 0 stacks in 12 seconds.
So I've noticed something kind of odd since getting the Plasmonic Leech console and am hoping someone can shed some light on this for me.
I'm only looking at weapons subsystem power here. May well apply to other things that drain a subsystem, like Aux to battery or something.
For this example I'm using a Marauder ship. I've specced all the way into both warp core potential and efficiency as well as 6/9 into weapons performance. I have a borg console equipped. So I think those are the main things affecting my weapons bonus power level at this stage (that I can think of) plus the plasmonic leech console.
So with my ship I can enter battle and start stacking the leech bonus until it reaches max leech (8 stacks). For me that's +16 power. So with my weapons power set at 85, after bonuses and leech and everything my weapons power maxes out at 124. Great!
Now when I start auto firing my 6 beams broadside at say the transformer in STF, my weapons power dips down to 74. Ok, so be it.
Now the odd thing is, if I set my weapons power to 100, I easily hit the 125 power limit, but power only dips down to 89 at that setting.
Why is this?
When is available power, not power?
I can change the power setting to 90 and still gain the extra 1 point power after everything to have 125 too, but even that still drops weapons power down to 80 after all 6 beams have cycled.
Does bonus power not count for as much? Does 'bottoming' out on weapon cycles rubber band around your actual weapons power setting? Does the power ceiling extend beyond 125 but just not shown in the UI?
Just want to know why I loose 15 points in weapons power after all 6 beams have fired between a power setting of 85 and 100, when theoretically there's only 1 point in power difference (124 vs 125) between them after bonuses.
The reason your weapon power doesn't drop so much is because bonusses from buffs ignore the 125 cap, and thus can be used to compensate for weapon power drain.
Normal bonuses (think "+10 to weapons") cap at 125.
(or are meant to - there's a bit of controversy about cannons respecting the cap and beams not)
The Leech console works differently. It adds extra power over time, not as a passive "always on" bonus.
(The total bonus it gives is affected by flow capacitors, and works out at very slightly less than 8x the value listed under your weapons - in my case, with 9/9 flow capacitors I get a total of +15.8 power - add a KHG MkXII deflector and I get +17.3. This is added in increments over 15 seconds)
Let's say you're in an escort, 3x Fore DHCs + a Torp Launcher, and 3x Rear Turrets. No Rapid Fire.
The DHCs each cycle twice for one second, then spend 2 seconds recharging ( -12 weapons power)
The Turrets each cycle twice for one second, then spend 1 second recharging ( -8 Weapons power)
As your weapons cycle they "reserve" weapons power which is drained from your weapons energy and added back in again at the end of their cycle - but the Plasmonic Leech console adds energy ALL THE TIME. It'll even add energy whenever it's otherwise "reserved". The result is that if you're firing constantly, the Leech will be adding energy back in constantly. You're not actually ignoring the 125 Weapons Power cap, you're just adding extra energy whenever your energy dips short of the cap (during firing cycle of your weapons).
In terms of real numbers, with the above weapons setup and the Leech giving 17.3, if I set my Weapons Power at 80 (reads 125 WITH Leech), the weapons energy display when firing my weapons dips down to 75. If I set my Weapons Power at 100 (reads 125 WITHOUT Leech), the same weapons energy display dips down to 87. That's a difference of 12 (plus or minus 1% due to truncation). And we're told that every point of weapons energy over 50 is basically an extra 2% damage.
Worst case scenario then, during the worst moments of my firing cycle I'd basically be sitting at a weapons power that's 11 energy higher - which is an extra 22% damage. This isn't quite a flat bonus though, since your Weapons Power will bounce up and down during the firing cycle, and once you hit 125 again you lose any extra benefit... but it's still a fairly noticable bit of extra sustained DPS.
EDITED: Plasmonic Leech does indeed add DPS over time, but it appears that the numbers you see in the weapons power display when firing are not accurate - extra energy over 125 does not noticeably contribute to actual damage output. See here for more details.