I'd say that furball and persuit aren't tactics so much as the two major styles of flying.

Tactics are HOW you furball and how you persue. (and, of course, there are some cross over between the two styles, depending on the situation. More on that in a moment).

For furball flying, just looping and hoping for a cut is actually a bad tactic, though it's very common. The problem with this approach is that you're relying on luck to get a streamer and not a mid-air. You'll get a few cuts through luck. but you might notice that the other guys always seem "more lucky". It's not luck. There are a number of things you can do in the furball.

The first thing to work on in the furball is looking ahead of your plane and seeing what is coming up. Then you make small corrections so that you come around on a streamer. Set your turn so that half the circle is outside of the furball, and the other side is through the middle. (as opposed to going around the edge of the furball or being entirely inside). Then, as your plane nears the furball, look ahead to see if someoen else is heading towards the same spot you are. Make small corrections, such as more or less elevator, or a small aileron adjustment to pass behind another plane and get it's streamer.

Another furball tactic is to fly horizontal circles instead of veritical loops. Most planes in the furball seem to loop. Going around horzontally can give you a better look at the streamers.

Also, watch the depth. It's often better to furball in an "in-out" direction rather than a "side to side". The reason is that most guys are going "side to side". If you go the other way, you get a better look at their streamers, and you take the depth out of the equation. You can open your turn for a moment to come in or go out a little farther to "find" a streamer for example.

Another furball tactic is to acutally persue in the furball. Pick one plane, and chase them. It helps if you turn tighter than your target because you can get inside then relax the elevator and move out through their streamer. This is actually how I fly SSC, the furball is slow enough that I can pick a single plane and chase them down, even in a 10+ plane furball. In B class, this tactic doesn't work quite as well for me though.

When flying persuit, there are a bunch of different tactics. Mostly, you pick a plane and try to get in to a position you like. The tactics here are what to look for, and how to try to position yourself. AJ's article describes one of the better versions.

I also like to attack on the left side, when a plane turns inwards towards the flight line, I find I get a lot of cuts by starting out beyond my target, then turning inside and getting towards the CEL before they do. It's kind of the opposite of what AJ describes. But I find that from that angle, I can be pretty sure I'm going to get the cut.

Some tactics are for specific situations. When someone goes low, I personally like to get right at their altitude, or a hair lower. Once I have the altitude, I often have time to figure out the depth and make the cut from there. However, when a target it up a bit, I prefer to get a bit above the target and attack downwards in the turn. Many guys wait for the low plane to start a turn, but I often try to get on them on the straight line. It does pay to know who you are chasing though. New pilots almost always "pop up" at the end to turn after a low pass. You can fly along a few feet above them and wait for them to pop up in to you.

In SSC, the power limits mean that some things that work in other classes don't work well, but it also means that some classic fighter pilot tactics that don't do much in the other classes work great. The best example of this is getting up above the furball, orbiting a bit and working it out so that you can dive down and cross someone's tail. The added speed from the dive is often just what you need to pop in on someone who is already occupied with another plane. So I like to look for a plane that is already chasing another plane, someone focused on offense is often easier to cut than someone watching their own tail already.

In most cases, I prefer to chase someone who is about my speed, or who is slightly slower than me. But, if you are slower, there are some things you can do.

I often use a J-hook turn to surprise faster planes that can't turn with me. Basically, I start by passing down the flightline, hopefully drawing someone after me. Then I start a moderate turn, hopefully just about as tight as the other guy can go, but not at my max. As they start to turn with me, I quickly wrap the turn up tighter, and if you keep the turn going for almost 360, and the other guy foolishly trys to follow, you'll have them on the backside. However, if you go to this trick too often against good pilots, they will know what to expect and nail you.

Another tactic is to wait for them to go out wide and turn to come back. Then time your turn to cross behind them as they go by. It's a hard tactic becase you only get 1 shot at the streamer as it goes by, but it can be effective. Another varianet is to go really low or go to mid-height, then do a sharp dive followed by a pop up. Ideally you wait long enough so that the faster plane has done all the hard work and set itself up at your depth, so you just time when to pop up behind them.

Defensive tactics are a whole other story.... Flying good defense is more challenging tatically than flying good offense, that's for sure.