Terminology is a pretty BFD in aviation, not to argue the point, but bad information or communication is bad. We're in a flight sim and virtual world, and we're not mandated to fluently speak and understand English to participate flying in it either, but the virtual aviation-terminology is identical to the real. Ignore the critics from those trying to help on the forums (but this is nothing new).
Technicaly you're talking about ropes in regards to most players will pop a notch or two of flaps at the top of the rope - either to delay the stall beforehand or quickly recover the aircraft after the stall. I think where you're encountering it most is in the rolling sizzors manuever it sounds like (which, if we want to nitpick, is closer to a flat sissors and barrel roll maneuvers than ropes, but anywho...).
I dont mind guys talking about it but I knew what I did wrong at the time it happened. 1. What I actually want to know is what part does flaps play in the maneuver that beat me, since I often see this in airplanes with high speed flaps. If I cared about stats I'd have broke off right when the HC broke and I saw how, and how much, he was building/managing his "E".
2. At the top of their zoom do you have to worry about HCs, Corsairs, 5`s,...ect deploying flaps and turning in on you far tighter then normal?
Some great answers to this so far, but I wanted to offer some input on it. I think you see this as one whole question you've asked, but it is actually two.
1 - You want to know how it beats you? Simple answer: What is the difference between
sustained turn rate and
instantaneous turn rate in aviation terminology.
The long:
Per the AH trainers site and TC at
http://trainers.hitechcreations.com/instturn/instturn.htm :
Instantaneous Turn / Sustained Turn
by TC aka Tequila Chaser
You can classify turns into (2) categories which are Instantaneous or Sustained.
Instantaneous Turn / Instantaneous Turn Rate - where a plane pulls max G's (near 6 right before blackout) to turn quickly for a short period of time, turn rate varies with speed , usually bested at the corner speed/ corner velocity of a given aircraft. A turn that quickly expels speed and possibly alt, while an instantaneous turn is by definition unsustainable, most times to be no more than a 180 degree turn or change in direction. While usually bested at the corner speed of the given aircraft, this turn can be performed at higher or lower speeds with less benefit.
Sustained Turn / Sustained Turn Rate - where a plane maximizes it’s smallest turn radius, g - load, and speed to acquire the best possible turn rate and continuously sustains the turn for long periods of time, without giving up alt, speed, or degrees of turn.
As the above definitions have defined, the difference between the two is the period of time you're able to maintain the rate of turn. While you can achieve a high instantaneous G-load by pulling back hard on the stick, you will not be able to maintain that high rate of turn for very long because that high G-load will increase drag and slow the aircraft, in return this will reduce the maximum G obtainable. Conversely, a lower G-load produces less drag. Eventually you'll reach a point where thrust will be sufficient to overcome the drag being produced. This will allow you to maintain the current G-load and speed. This is called sustained turn rate.
You will find that most Aces high pilots rely solely on an aircrafts sustained turn rate performance speed and basically ignore the instantaneous turning ability when choosing their ride. This is usually because an aircraft with a high sustained turning rate will be easier to fly in combat. To ignore instantaneous turn rates would be a really bad judgment call on your part. A superior instantaneous turn rate can be useful for defensive maneuvering, but when used effectively, it can be deadly in an offensive capacity. This advantage can allow you to come to a guns solution faster, but the downside is that if your sustained turn rate is inferior, unless you make the kill immediately, you're in for trouble. It is at exactly this point that you'll understand why a superior sustained-turning-rate aircraft is easier to fly.
In your video the con has the E-advantage, and is in an aircraft equiped with high-speed flaps - at the opportune moment he traded some of that comfortable-advantage (alternatively, it could of been a last-ditch effort) with his flaps to gain a quick instantaneous turn that provided a guns solution on you. It worked but is not a very good strategy, as had it not worked and you used it to your advantage, he would/could of given up his advantage over you with that flap deployment.
2 - "At the top of their zoom" almost any aircraft can deploy flaps (that is equiped with flaps and at the top/slowest moment are below their deployment speed) to eek out an advantage in regards to forcing an instantaneous turn onto you for an advantage. But, per TCs description, this bleeds speed/E that otherwise could of been conserved by them for use in another maneuver.
The sum of it is that as you learn to counter these agreesive turning maneuvers, and progressively start to turn/fly better yourself (I ask: "are you sustaining your turns and not excessively bleeding speed/energy when you don't need/intend to?"), you'll see that the patient and disciplined fighter can often outlive and win over the less patient or more desperate.
And to be honest but not insulting, I haven't been able to watch your video, and it apears to now of been removed by the user who posted it.
I will try to be a good listener though if ya have more questions.
PS - I should of noted, it is harder for you to execute instantaneous turns with the flight option enabled for "stall limiter" - disableing it allows you to execute these bleeding-edge turns to the fullest extent in AH (including the possibility of over-doing it and inadvertantly stalling your ac).
i had a feeling this was going to go south...went from 
"i know what i did wrong but wft?" to 
"ef you, a-hole, don't tell me what i don't know"...
great job 
Humble pie, mmmm.
