Lucindas (-LC)
People like Akiko-chan

Lucindas have a two part power. To date, none of them have manifested one or the other.#1, Lucindas have hyper-acute senses #2, Lucindas can put their body, or parts of it, through solid objects.
The -LC gene alone provides no powers

Some people refer to them as being “de-spaced” since their abilities cause them to seem as if they are standing outside the sphere of normal people.

Lucindas, first documented by Terrans, are named for Ada’s sister in Ada or Ardor.

And yes, they are rather rare and have a high insanity rate.

Precognitives (-PC or -CV)
Seeing the future, but not all of it :P. Poor Brad.

But! Brad is not just another Precognitive, he’s an exquisitely talented one.Not all precognitives can use their power on demand, or be taught to do so, let alone to hold onto what they see with photographic quality.  In fact, Precogs are some of the LEAST demanded 43s.  As a consequence, good ones are expensive.
People carrying only the -PC gene may have flashes of foreshadowing once in their lives and never be worried by it again.

Compared to other 43s, they have a low insanity rate, but that doesn’t mean it doesn’t happen. It only makes Brad all the more intriguing considering the thought he was going mad.

Psychometrics (-PM)
People like Trowa… whoops! Wrong series.

Yes, there are people who can sense the pasts and/or emotions associated with an object running around in Crushed Violets.

Their strength is determined by the subtly nuances they can detect, and how long before they can can’t sense such things from an item.  Besides this, a psychometric may have two related powers…

* The ability to infect objects with negative auras/memories/luck
* The ability to fling emotions/ memories/auras from an object to a person.
Alone, the -PM gene does nothing, though there’s a joke on Terra with some truth to it that people with only such a T* gene become interior decorators.

Psychometrics have a medium insanity rate.

And are, if they have the latter two powers, mistaken in occasion for telepaths.

Psychometrics are easy to spot- they wear gloves which they take off in battle, refuse to go near metal if they can (as it bears the best “memory” of any material), and carry around small, seemingly random objects.

Telekinetics (-TK)
People like Nagi

There’s no real way to rate the power of a Telekinetic. Some are simply more amazing than others. When Nagi smashes a building with his rage, it’s a little more interesting then seeing someone make soap bubbles contort.Not all of them can fire Ki at will. In fact, they, like Precognitives, aren’t known for doing ANYTHING at will.

But lots of people still want then around. Shock value is still value.
The -TK gene alone does… well, zip for the most part. Oddly enough, people with it only are praised for their aesthetic sense.

Usually in bed.

Telekinetics have a low insanity rate, but are notorious for not being able to control their tempers. At all.

They aren’t too common or too rare.

That Nagi is detached and NOT (more or less) inclined to smash people for fun makes him exceptional.
 

Appendices
Read More Lesson II
On to Lesson III