I'll have a stab at what I think..
So... sliding around at the track-
What are the different ways the bike can slide on the tires?
You can have pushing as well as sliding.. Pushing would generally be when you are going too fast, and the lateral forces are more than the lean angle and tires can handle. The bike can push wide and keep pushing and pushing until you have slowed enough to let the tires grip fully.
While the pushing out occurs, if you make throttle changes that result in any weight transfer, you will feel the bike act accordingly. So if you let off throttle a bit hoping to slow down sooner, the front will start to push out faster than the rear. The opposite occurs when you engage the throttle after getting nervous of the front moving more than the rear. To view links or images in this forum your post count must be 5 or greater. You currently have 0 posts.
Now you can get sliding in two ways, one the gas, or off the brakes. On the gas is an obvious one on what's going on. Generally the cause is too much throttle while holding too much lean. This is usually the case with people who are not taking the best lines thru a turn. When the back walks out excessively and corrective action is required, I find that tipping the bike up barely, while easing off the throttle ever so slightly WHILE getting my ass back over the seat is a good way to not get tossed, and to catch the slide quickly.
How do you recognize that it's happening?
Hopefully you feel the bike move before you feel the loss of drive from the back wheel spinning. Generally, I will feel a sensation of the back tire following the front around the turn (on DOT's). If you do get the rear to spin up so much that you lose your drive, hold on, cause that's when the rear shock unloads it's weight, then catches and you highsides.
On street tires, if the tire pressure is a little too high, I will get a floating and gliding feeling from the back in addition to the previously mentioned rear following the front feeling.
When is it good? When is it bad?
If you're hard enough on the drive out and the bike follows the front, you aren't gonna get out much faster than that unless you tip up further and drop your weight down/change BP for more contact patch.
How do you maintain control or recover when it happens? For the front tire? For the rear? For both?
In the previous paragraphs I mention this. For the front, if you're trail braking and you feel the front start to push and then feel a jolting type feeling, then you need to ease off that brake!
How do the tires themselves effect a slide? Street vs. DOT race vs. slicks? Tire pressure?
The rate that a tire loses it's traction during a drive greatly effects the results of a slide. Take those TD slicks for example, they don't drive out as hard as gummy DOT's. The slide is more abrupt, but not so bad that all drive is lost and the rear unloads. On a street tire with a HARD drive, in that same situation, you may not have this result. More or less, (with the same drive/throttle and lean) you're gonna get that unloading of the shock and the back tire is gonna catch hard...
Gotta leave work, so if none of this makes any sense cause I typed it in a hurry, please be easy on me. I will undoubtedly edit this post a handful of times until I am satisfied with it! DISCLAIMER: I do not claim to be any kind of authoritative figure on this topic.